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MICROCOPY RESC.UTION TEST CHART 
 ANSI and ISO TEST CHART No 1 
 
 1.0 ? 
 
 I.I 
 
 ||jj 2.2 
 
 ijZO 
 
 II 1.8 
 
 1.25 III 1.4 
 
 1.6 
 
 ^ /1PPLIED IMHGE inc 
 
A Simple Method for Determining Vari- 
 ations in the Hydrogen-Ion Con- 
 centration of the Blood 
 
 K'. I. I. I \ N , \l 1> . 
 
 I ( ,^ \< I i\\ X I K I. I, \l i) 
 
 \ -. I ■ 
 
 W M . K I M M \ U k M M I . ,\l D 
 
 i; \i.i I \i<H;r 
 
 l\,l'iiiii,it /I, 'III till- .h.hii.s iij hili-iiiiil Midiiiiw 
 
 J- ^ 
 
 rni( A(io 
 
 \\nPii \\ \lniHM AsWH-IATIOX 
 
 I iM Ml M'Ki i» AM' 'liiiKi vl''i\i- VnnTM l>iAmi"i<N 'iHiir 
 
A Simple Method for Determining Variations in 
 the Hydrogen-!on Concentration of 
 the Blood 
 
 K I, I. i \ \ . \1 l> . 
 I.. (, i< ' ' W \ ! K I, I-.. M I' 
 
 Wii 
 
 \\ \1 . K 1 M M \ K U I ' ' T I , M n. 
 
A siMi'i.i-: Mi;iiini) i-( )k i)i:ii;i<Mixi.\(i xariahoxs i.\ 
 
 ■rill-: ini)R( )(,i:x-i( )X Cfixticx ru atk ix oi' 
 
 ■nil-: r,i.( x )i)* 
 
 K I. !.1AA', Ml), I.. (,. RoWXTRI-.l-:. M.D. 
 
 AMI 
 
 W \l. KIM M ARRK iTT. \l !) 
 
 Ilnm.'.ii lildiid, a^ it L'\i~l> in tht- imkIv. i^ faiiilly alkaline in I'L-aciKMi: 
 that i^, it lia^ a li\ ilr(mn-iMn cdnci.'nlratica; unly slitjlitly k>^ than l!iat 
 III' piiri.- walLT, and this licyrce df alkalinil\- lend- to he maintained even 
 when eiin>idcrahle (|nantitie> (it aiid are iruduecd wilhiii the hudy, or 
 are intrndiu'ed liiini willuiut. 
 
 Ill a n.Iati\e iiicrea-e in the acid eiintent of the hodv. the term 
 "aiidn-i-" i- a|i]ilied. Acidn-i-. euneeixalih'. nia\ he hroiijjht ahont in 
 iilher way- th.in thu-e ]il-t nienlinned -idr eNample. liv deerea-ed 
 exereliiin (if acid or h\' In-- uf ha-e- from the hody. Ihe eundition 
 ha- heeii reei lyni/ed in a \arietv nf wav-, -tieh a- inerea-e in the 
 anminnia enertieient nf the nrine, deerea-e nf earhiui dinvid ten-inn in 
 llie ahenlar air. ihe liiidinL; nf ahnnnnal arid- in the hlnnd and urine. 
 \iv inere.'i-ed alkali tnler.anee and li\' diniiin-lu'd titrat.ahle alkalinit\' nf 
 the hlnnd -ernni. li\- i-hani;e- in the hentni^lnhin di--iieiatinn eiir\e and 
 liy aelii.il dele rniinalion nf the hydi'nueii-inn enneentralinn nf the lilnnd. 
 i 'rndiietinn nt anminnia. low erint,' nf earhnn dinxid ten. -inn in the aheo- 
 l.ir .lir and in the hlnnd. and exeielinn nf acid- are all ii.ari nf the 
 i-iini|ien-atnry nieeham-ni nf tin- Imdy, and it i- nnl\- when thi> 
 nieih,ini-ni hemnie- ii\ertaMil that aiipreekahle change- in the lixdrn- 
 L,in-inn eniuenlr.atiiin nf the hlnnd neem-. The haind il-elf, nwiiii,' 
 ' hiell\ in the "hnrfer" aetinii nf the earhniiale- nf ihc pla-ma and 
 ]ihn-]ihate- nf the enriiii-ele.-. can i.ake iiji enn-iderahle anmiinl- ni 
 aiid nr al'^.ili witlmnt nuich eliani,'e in it- re.ielinn. It i- [irineiiialh 
 due tn the wnik nf 1.. |. 1 lendei'-i m' and hi- eiillahnratnr- that we 
 h.ive a ele.ir ennee|iliiin nf the mnde nf .lelinn nf lhe-e "ImtVer-." .\n 
 aiipreeiahle ehant^e in the h\-drnt;en ion eniuenlration nf the hlnoil 
 iiidieatcs a laihire of the iirnteeti\e meeh,nh-ni ,ind the iire-t'iue of a 
 -ii;nilieant acido-i-. i lerein lie- the peitiliar \alne nf a delirminatinn 
 of the hvdrni^ren-inn eoneeiitratinn nf the hlnnd. 
 
 "■ l-'i im the IV'ilnitnc ami Mr.lKal Clinios. Juliii- lln|)kiiis Hospiial 
 1. For a lull i!isci!--Mii. -. r llemlcrson, L. I.; I'.rgebn. d. Plivsiol., 1909 
 viii. 298. 
 
A liriff wnrd cif i-\|ilaii:ilinn nKi> lie kim" '"i' tlbisr un:k-i'n-li mu'l ici the 
 physii-iii-luinical imtlioils of cxprcs-iiiH tlic reaction nt a sdhnicii. A -dmii.ti 
 is acid when it e<.ntaiiis an (xccss «i hyilrogin nvcT hydrnxxl ion-, neutral 
 when hydrogen and hydroxy! ion* are in e(inal ninnlier-. and alkaline when 
 hydroxy! ions predominate. An acii! of "tinrinal" strenm!i eonlain-. in one liter, 
 a gram of hydroyen oap.ililt mi furnnng !iyc!roi;en inn-.' an(! its strength may 
 !ie ex])res-eil as 1 X, Diinliny -uih a -oliition tin tnni-, ue W(jnld have 1/10 
 .\ or a solntioti containing l/lD gram of actual or potential liyilrogeii ions to 
 the liter. Continuing the proce-- of dilution until l/IIMKKl.(«lil normal acid is 
 obtained, we wmild have in such a solution I/1II,'KHI(XI0 gr.nn <•( hydrogen ions. 
 Pure water, however, di-sociatcs to form hydrogen ;uid h>drci\.\I ion-, and at 
 31 C contains approximately l/IO.OiHl.fXKI gram .if h\drogcn ions to the liter 
 and an ccpiivalent amoimt of hydroxvl ion- 1 that :-. 17 gm.i. That i- to say, 
 pure water, our stanilard of neutrality, i- l/lll,ll(KMKK) X acid anil also 
 l/UVKKUHHI X alkaline. To .-.void writing large lignres it i- customary to use 
 the logarithmic notati(jn and to express 1/10,01H).(M1I) X a- lO'X or, tnorc con- 
 veniently, as suggested liy Soren-en,' to ilrop the ID and miini- sign and say' 
 pH7. If we h.-ive K-- than l/Ill,il(H1,PtK) gram of hydrogen ion- to the liter, the 
 -olution is less acid than water, that is, it is alkaliiie — so. pi IS nuans actually 
 l/l,00n.0()() X alkali. The higher the exponent the ni'ire .ilkalinc. or what is 
 -aying the -aine thing, the K-s acid is the solution 
 
 To -mn np ; 
 
 pill = X/lll aciil. 
 
 pn6 = X/!.lKl(Mll'(i acid. 
 
 pi 17 = xi-rrh-.u.iry. 
 
 ,,||S — X/l.oiKl.tHIII alk:ili. 
 
 ,,1114 = X III alkali. 
 
 The rcactimi m' tlu- MikpiI -cr'im \,'irii> .•i|.]iriiNiiiialc!\ licU\ccil 
 III 17 ,-iii(l pi Is. ilic iH'iilr.-il |inint, |.II7 hciiiL; rc:n'ln'il (Uilx in -cxcrc- 
 iiticoiniicii-atcij acidd-i-. :nnl ,'i rca.-liim of ]<\\X liciiii;- attainoil |icrhaii- 
 Miil\ ;i ftcr ailmini-lration I ii alk.alii-. 
 
 TIh' tin .1-11 roll lent nf the |il I m' llic lilooil a- i-(iiii]'an.'ii w illi that '>i 
 innri^aiiic -nlmiini- ina'-ciil - iii.anv ciiltk-ullic-. 'I'ln.' -tainkaril t,';,, ihaiii 
 
 cU'iirnniclric nictlaul lia- liccii aiplicl to llic M 1 li\ a mimlicr ni' 
 
 iin c-'.i^.atur-. A mil rr\ irw of tlic lilrratiiro tip In I'Mi' ?- tn lie imniil 
 ill at! .article li\ l'.iii,a//i .Mure ri .1 lU iKicrniiii.itioii- li:i\c ln-cii iii.adc 
 
 2. For the -;ikc of -iinplicily wc will cou-idcr here nnly a "-Irnry' acid 
 ami a.ssumc it to he completely ionized in dilute solution. 
 ,?. Soreiisen : I'.rgelm. d. Physiol., \'\2. xii. 401, 
 
 4. C1I7 and (11*) ^ 7 arc synonymous expressions. Intermediate values, as, 
 for example, lietween pi 17 an<l pH8, arc commonly expresscil in one of two 
 ways, as 0.25 X 10' or pll = 76. The latter method is used in this paper 
 The conversion of one exnression into the other i- simple. For 1 xample. log. 
 0.25 = — 0,602, then 025 X 10 ' = 10" "" x 11'' " ~ 10 '"" -r pll - 7,502. 
 
 5. Bota//i : I )er Ham -owie die uhrigeii .\u--cheidnng(n rnd Ki 1 prrllussig- 
 keiteli. edited liv (' Xeul erg, Berlin. I''l 1 
 
li.- 1 la^vlh.iKh ami I .umlsijaanl,'' lViii>,' IValc > ul Milroy.'' The 
 
 r(.--uli~ iia\f nut inni alici;,'filKT iinif<irm, am. tl-c accuracy of the 
 inuhnd a^ apiilicil to Mood i~ (Hic-tioiiaMc on accuunl oi' tlic necessary 
 reduction ol tin i,. liio^IdKin. and ilic inthicncc oi' the I'rotein -nh-tances 
 lire~ent. 
 
 Hie lacl that the ■,'a- chain n.ethod ,,i delerniinini,' the ]i\] ni the 
 hlood rec|uire> a delicate and e\|ienM\e I'iece of |ih\ -icocheniical apjia- 
 ratti- a.^ well ti- idn-iderahle technical trainint; ha- heeii -tandint; in 
 the way of clinical investigation- of acido-i, ihrecth from the -ide of 
 the hlood, an<l ha- led to the very \aluahle hut indirect method- of 
 apiiroach, -nch a- tli(.-e titilized in die -tudie- of Sellard.-,'" I'almcr 
 and 1 leiuler-.m'' and Adier and i'.lake.'- 
 
 vxi xciri.i; oi-- i m: m irudii 
 Meretn'nre the imlicator nietlKMJ lia- nut ], roved of f,'reat \aluc in 
 the -tiidie- of llvdro;,r^„.jlJn concentration of the hlund, althon,L,di tlic 
 reaction (jf inor-anic -oltttion- may he determined (|uite acctirately hy 
 till- mean-.' DilTerenl indicator- -liow their <-olor chan-e- at \aryin<,' 
 det^ree- of hydr<ii,'en-ion concentration; lor exaniole, the color of 
 methyl oran-e clian-e from pink to yellow a- the ]d 1 of it- -,,lution 
 chan^'es from .i to .-. At interme.'iate iioint-. \arious coloi - may he 
 ohtained and a certain color indicate- a delinite pi 1. >innlarl\ . jiheiioh 
 lihthalein .hani;e- fn m colorle-- to pink lielween |.liS and idllM and 
 can he tl-ed for the mea-tirenient of ||-ion concentrations hetweeii 
 these two point-. In carryin.^ out the indicat.n- method, it is necessary 
 to have a -erie- of -tandard -ohnion- ,,f knoM, ,dl and an imlicator 
 exliihitin.tj; ea-ily distinpii-hahte color chan-es at liylrotren-ion con- 
 centration- apiiro.\imatin,t,' that of the -olutioii un.ler coii-ideralion. It 
 IS then -imply neces-ary to add e(ni d amoiir.t- of indicator to the -tand- 
 ard solutiuiis tmd to the solution heint; te-ted and to determine which 
 of the colors in the standard scilution- mcj-t closely iiiatche- that of the 
 unknown -olution. 
 
 jjaanl : Uiid.. 1'<IJ, xli. 24/. 
 
 7. P>I,is: Physinl. Soc. I'rnc , Jamiarv, V44 
 
 S. PcalHHJy. I'. W.: Sni.lic- on .\c„lusi- ami Dyspnea in Renal an.) Canliac 
 l)i<caso, lin; .Xm.nivi- Int. Mi.i, . ici4 ^iv, _'.?fi. 
 
 '' Milroy; (Jiiart. .hmr. Kxpt-r. I'liy-inl, I<,14, Mii, U|. 
 
 in. Sellard, : Johns Hopkins llosp pull., I'.IJ, xxi.i, 2S'/; il,i,| pJU xxv IDl 
 
 II. Palmer, WW., ami Hcn.lerson, L. J; Clinical St.i.lies on Acid Base 
 
 i-..|nililirmm and the Natnro of Aeidosi^, Tin, .\i;c mivfs I.nt Mid 19n xii \S3 
 
 \2. A.ller, H. M., a, d Ulake. Gerald: I lie detention nf Alkali i,v the 'Kidney 
 
 wnh special Reference tn Acidosis, Tm .\k. nivis Int. Mi-:i,., loi], vii 479 
 
 l.r For a fnll description of the application of mduators to thi- nnriio-e see 
 SC,ren-en: l-rL-.rlm d Pliy.;,,l. !':!.\ xi,. ,-!9,l 
 
'Ihi- 111' lliM,l li:.- liron -iu>i " lullv u-v>^ on llic iiriiic l.v llcnder- 
 ~c.ii" au'l !i\- \\ al]inlr,' \- prnUiii- iiUrrlirc w illi tiio lulor- dl" in:iii> 
 indic.itnr-, ainl :i- l»iili Mii'nl and -iriiiii |i(i-~f~- mlur, ii lias lici-ii 
 iiii|ii."iMr In apl'lv lln' imili",! ilirctlv m \\w l.lon.l '" 
 
 It -iiiiKd |.rol>aliK' that lln' iiidiiaiMt- nullu"! iiii'^lit l.o utili/cl inr 
 lilon.l, |iru\i.R'd laili.riiiL,' iiiatUT- and iirolrin- muld In' rxrhnlrd li\' 
 
 iiu'aii- nf dial\-is,' It 1.1 1 1- dia.|ii.cd int.. riilli.iinii -acs and 
 
 dialv/id l"'ir I'lxr iiiinnU'-. llir dialy-aU i- irvv traini prnt^in ami K-i<\,,r- 
 itiU nialln-. lull i-untains -all-, and i> uvll aijai'Iid In tlic u-c nl indi- 
 i-atnr-. 
 
 >in.\' iilu'iii'l-nlpliniu phlliaKin rxlnliil- .Iri'iniU' \arialinii~ in cuialil) 
 III' i-i)luf, with \ir\ innnitc dilinciUH- in liu:;-ci'^rii ion i-muHiitfatinn 
 lulwri-n ii||ii4 and S-1, il wa- adniiliM a- iIk' iiidiralcr in ilii- iiU'llmd 
 
 TKI l'\i; \l I'lN (II. slANDAHl) CULdKS 
 
 Staiiilnnl phospli^itc mixiim- arc prc|>ariil ai-conliiifr to Si.riMiscn'-" dircc- 
 lioiis a> follows : 
 
 1/15 null, acid or primary potasMum |)lio<pIialc. 5.078 Kram? of tlio pure 
 rccryi^talli?ed salt (KILPO.) is dissoIv<d in freshly distilled water and made 
 up to 1 liter. 
 
 1/15 tiiol. alkaline or seconilar\' '^odiiim pliospliate. The pure reery^tallized 
 >alt ( Na.llPO. . UH:0) i-^ exposed to the air for from ten da; s to two weeks, 
 protected from dil*t. Ten molecules of water of crystallirntion are Riven off 
 and a salt of the forninla Na 1 1 PO. Jl 1 () is obtained : 11X76 grams of this 
 is dissolved in freshly distilled walir ml r'n<le np to 1 liter. Tic solution 
 ■honlil Ki\e a deep rose re<l color with plien. idillialeiii. If onU a faint iiiiik 
 color is olilained, the salt is not snlVicienlly pure. 
 
 The soUitiors .in iiiivid in the iiroporlions irdicaled lulow to olitain llie 
 desired id I ; 
 
 I 11 
 
 - s-n ji o k 4 
 
 rrimiiry I'nm. Pho« 
 
 73 i>3 "it 
 
 HI ft « i:i.'.' 11 " ■».»» •>'> :t ■-' -.» 
 
 Srpoitiliiry SimHiiiii l'Ii*t« . 
 
 . s ;:! TT «i siijfl.Rmi.flnI.f !H.4n(l.»l».n 
 
 Tlinc I.e. (if c:u-h ni tin- snhitintis ;iR' pl.-n-rd in -iiit.aMf small Ifst 
 Ittlii's ( PX) 1(» mm . iiisiili' inca-iirciiicnl i l'"i\o dn>]is oi an aiitlcous 
 
 14 Henderson: Biocheni. Zl«chr. I'iin. xxiv. 40. 
 
 15 Walpolc: Riochcin Jour.. 1910. v, 207. 
 
 10 S.iren-en ( Ilioehfni. Zt'chr . I'.W. .xxii, 2.W> has applied the indicator 
 method to the fdlralc ohiained after precipilalinif lilooil or scrum liy hoilinR 
 Hith three volume* of dilute h>drochlnric acid. Adier ( .\m Jour Physiol, 
 1M17, XIX. 1) has tested the reaction of the serum with paper dyed pink with 
 rosoiic acid. The ohjeiiions to thr-e methods arc ohviou«, 
 
 17. Preliminary exp»>rimenls showed that it was impo«sil.le. hv the iii<licator 
 method, to rilitain cnncorilant re»ull> on dilutions of scrum 
 
 IS s, ,.,,...,, |ii,„.h,.-ii 7t-i-hr. inno, xxii. .>52 
 
n.ni per ocnt. -dluiidii of iilioiiol-iilplioiic]ilitlialciii arc addcil tii each 
 tube. i he Idi),- arc scaled (ilV. '1 lie veries of color,-, reprc-eiuiiii,' 
 ihllcrcnt 'uncciitralion.- of h\(lrin;cn ion-, con-lituli- the -taiidard- lor 
 comiiari-on of color in carrviiii,; mu ihc ilclcrniination.''' 
 
 I'KI.I'AKA I K p.\ Ol- SACS 
 
 One oiiiicc uf ccllniiiin lAmliMii> - ncf;,ui\<- i-.iitniir" is .lis-olvcd in 51K1 c.c. 
 "t a mixture o: f(jiial quantities of ether and clli\l ;iKi.Ih.]. The solid swells 
 tip and dissolves with occasional gentle shakings, in forty-eight hours. As .-, 
 -ninll amount of liv.nwi s,.,|i,„,.,n separates out at first, the solution -lionl.l 
 stand tor at last thrci- or four ilays, after which the clear ■-uperiiatant -oluiiou 
 is rcaily for use."' A small test tube (13! by <) nnn, inside measurcnknt i i- 
 filled vilh this mixture, inverted, and half the contents jionred out. The tuhi- 
 I- then riehi.d, and the collodion allowed to fdl the lower half again. .\ -ec.nid 
 time It is iiuirteil anrl rotated on its vertical asi-. ihe collo,li,,ii Ining draincil 
 oil. Care mii~l Ik- l.d<iii to rotate the tuhe, in .loUr lo -ecur' a uniform thick 
 ness througlioul Tlu tiilic i- clamped in llu iii\eited position and allowed 
 to stand for ten nniiiue-. until tin- odor of elher finally disappears. It is fdled 
 five or six limes »itli c. 1,1 wattr. or it is alloweil to soak live minutes in cold 
 water. .\ knife Made is run around the upper rim, .so as to loosen the sac 
 from the rim of the te-l tube, and a few culiic centimeters of w-iler are run 
 down between the s,i,- ,-„„| tin- ^|nss of the tulie. liy gentle pulling the tube 
 is ixtracted, after which it i- pre-erved by complete immersion in water." 
 
 Iili >\l 
 
 'III ii i\ is;;ii I \ -iiir MI riinii 
 
 I lie hloo.l or -inini i- di.ilwcil agalii-t an D.S per cem -odmni 
 chlorid -Mhitiin], 
 
 I'.efore applying the test, it is neces-ary to ascertain that the s.dution is free 
 from acids other than carbonic. To dcleriiiine this, a few cubic centimeters 
 of tlic salt solution are placed in a Jena test Inbc ami one or two drops of the 
 iiulicator addeil, whereupon a yellow color appears. Ou boilinK. carbon dioxid 
 is expelleil, ami the solution loses its lemon color and takes on a slightly brown- 
 i-li tint. Ill llie absence of this change, other acids arc present, and the salt 
 solution i> ilurefore not suitable' If. on the other han.l, on achling the itxli- 
 cator, pink at once appears, the sobition is alkaline and hence cannot be used 
 
 I I ( II MC ' I M M 111 111 
 
 i in hihiiic can he c.inud mil on iiihrr miiiiii. pl.iMii.i. whole or 
 
 deliliriii.itcd hi I llu woik nm i he done in ,, i ii free frmii ;iiu 
 
 tit aciiK ol ,iiiiiiioiii,i. 
 
 \'i. The colors may fade slightlv in a month's lime, but mav s|il| be used for 
 >ompari»on if less indicator iii added to the ••unknown" solinic.n, as Ihc color 
 i|iiality remains the same. 
 
 .11. Obtained from the .\n«co Co., Minghamlon, \ V Thi* contains ,10 per 
 cent, of water and mu»l be riii>^e(l with absolute alcohol before lieinK <li.ssolved 
 for use. 
 
 JI. Belter sacs are olilained from solutions llial have been allowi-! '•. ■...,.•• 
 in well stoppered bottles for from two lo three weeks. 
 
 22. .Sacs that have dried became brittle and impervious. 
 
 J.V It is advi«ahle tn kfcp the salt solution in a Jrna glass (la.k and to pro- 
 tect it from acids in thi air by iiicdiis of u s.h1« time mbe. 
 
8 
 
 < iiie li. ihixi.' i',<', (il ck'.-ir siTuiu-' or el Mik"! i- run, In nicanv (if :i 
 Miliit ]iinnk'il |ii]>ti. inlo a ilialy/ini,' -ac wliirh ha- \k\\\ wa-ln.l in-iilc 
 aiiil (lUl-i'li' wiih -alt -nir.tiun ami wliicli l - ln-ni K--U''l I'nr Ital>- liv 
 lillinu Willi ll.c -alt -nhiiioii - Tin' -ar i- lnwcri'il iiiln a -mall tc-t 
 tiili'-- I liiii l'\' |!i iimi . iii-idc iiKa-umiRiil- I I'lur.aiiniiL; .^ v'a'. '>\ tlu- 
 -•ail -dlMlinii. until tlif lltii.l (.11 tlu- nut-iilc dt' tin- -ar 1- a- liiL;li a- nii 
 till' in-i'K'. Itiiiii !ur tn uii niniuti- arr allnwi^l I'l.r cliaK -is,^'' \'\\v 
 (.(illiiiliii-i -ar i- rniiiiwil ami ' ilfnp- ni tin- iuili(-aliiv are llii ifnUi^liK' 
 uiisnl with tlk' ilial\-atr Tlir inlir i- ilu'ii n aiii lavi'd with the- -ri'ic^ 
 I'l -lamlafd- until tlir rniTv-|H .n.lmo ii.lnr i- t'liiiial. whii-li inilicali.'^ 
 llu' h\clniL;rn-i(in n nu inlralii m |. result in tlir iliah-ati\ 
 
 I In -I tr-t- It, r Imu lan'inl nut with .^ r r, nl" I.Iii.hI nr -rruiu 
 I llr -allir l\'-ttll - atT ulitainr.l \\itli 1 r ..■, nt' IiImihI i,r -rnitn 1 in tin- 
 iii-iiU" nl tin- -ac. ami with tin- ■inmunt ii 1- iininatrrial whrtlur tluTi- 
 
 i- 1 nr .> I' I- lit' -all -nlntlnll nil llu' nllt-iiU' 
 
 inMrAKlMi.N III II 1:1.^ Willi M\\ti\K|lS 
 
 i nr llii-. a yiiiiil lii^lu 1 natiual 1 n- aitilii iai 1 ami a wliitf harkj^'rouiul 
 at'.' ri'i|iu'-ili'-.. ivvailiiii;- niii-t lu iiiadr iiiiuuilialiK I Ik- iuIh- uialrli- 
 illg-' mil-! rlii-il\ i~ viK-.liil ami aln llu lulu- mi nllur -.iiK- ,,f it. 
 Tlicsi- an- iritiiallx iii-|.r(lril a,i;ain-t a wliilo hacki^niun.l. ( hani^im,' 
 the oriUr ui tlu- iiiln- ntun uiaki-^ ililYi-n-iu-i-- umri' a]i|iarvni. " 
 
 1 "N I 1:1 1| ^ I II III 1: Ml I Ih III 
 
 l\i pcati-il ilii]i|uatr ilitiriinnatiiiM- nu llu- -aim -aiii|ilr- nt" lilnml 
 :inil III -(-nitn liaM- miu inrc-il u- that tlu- limit - 1 il i imr avi \ i r\ -lii^hl : 
 tnr i-\aiuiiK-. iIk- M-niin linin a ra-c nl" milij ai-uln-i- 1 u-hil; i|nantili(.-v 
 nl -iriiin \;iryitiij frnm 1 in .^ >■ r. -.iid clialv/iiis^ inv irnm Iim- in 
 liltcfti minnti'-- ) ii'.iw llu- tolluwiiij; series of ri-ailmy^: 7^'', 7.5^. 7.?^, 
 7.^^, 7.(), 7.!'!', 7.55. 7.r'5. 7:<^, 7.rr^ Tin- dN.-il.-iioil whnjc h],»»\ frinii 
 the same case ^ave llu- follnwiii^; reailiii;,'^ iimkr similar c(milili()H> : 
 
 7.2^, 7.2r. 7 2?. 7.2r. 7 2. 7 25. 7.2h. 7.S. 7.2^, 
 
 /Jr. /dr. / _'," 
 
 24. Ilmmljvis ttniN in iiiirc;i«- llu- aiiility nnil inii«t be avoiilcil. 
 
 2l< .\ --ac may In- w-vd mure lli.iii (im-i- fur Mcnini. proviili-il it i« thnri)iiKlily 
 «;i'lu-il. 
 
 J(i. Thi- alkali lily nf llu- ilialyiatr im-ri-asc rnpiillv iliititiK llu- lir->i live miti- 
 iilf* Tlu-rc i-» iiii ,-i|iiiri-i-ialilr chaim,- iturinc llif next t>-ii miiiillcs. I'r(ilcin<i 
 may ni.i'kr thi-ir a|i|ii-iiranic in tin- <lial>-att- in from ti-n In Iwonty niin-itrii. 
 
 27 h mn«t Ik- Iiornj- in niiml thai nnr i« lit-rr m.-ilrliinii thi- qnatiii. ..f i-nlnr 
 am! not inttn«ily a-* in nnlinary (-iilnrjiiu-lry. 
 
 -H. .\ (i-ilnr talliiiB l«-t«(-i-ti two of tin 'tandanU may lie reail. Iiy int(-rt><>la- 
 lion, 111 aniillicr lit-iimal place. \o effort was e\er maile to reail elo«er than 
 0.05. I'ttplicatr c'eterniinalioM-i »hfinM lie made in all i-a«e« ulirn «nlVu-ient 
 matrfia! :s ftvailaMc. 
 
Ill or(l<r tn tc~l cmi iIr. rlUvt ui i1k' \ -riatidii- i,, the -ac- ii-i'.i. a 
 minihrr <.i .Ktrrniiiialinii- wrrv iiia.ic ..„ iIr. .,„,k- .ample ui .mini 
 ""'■ 'li^' l'"ll"\vino- iTMih.; (ir.liiiau lliiii sic. 7 .7 \ lliick ^ar. 7 7; 
 "|'a(itu;. invytilav -ao. 7 7; .ir.lnian ihiii -ac. 7(.-; \tT\ ihi.k sir. 77 
 A .iTK'- Ml six iinrmal -cnim. wire run thn.unli. ,^ cm-, ami 1 rr, |Hir 
 tM.n. ln-ini; UmM lor .lial\M. In iwrv in-lanrr i.knl'ual rea.liim. uiiv 
 itl.taiiK'cl 
 
 M'PIJi M hi\ ,,]■ till Ml Til,, I, 
 
 llaMni; llin- a^iuvl .iiiVMKr. ,,i ihr arciirarv m1 liie m, tlm,!. ,-, 
 
 ^'''■"■~ "' ''' '- '''■""! ""nnal an. I pallml, ,o„- ,-a-i- uvrr Mu.liol, willi 
 
 llir mI1,,\\ 111- IT. nil- : 
 
 1 \.>vuu,l nuliriiliials: i\'.un> li\r cases. ( ,/ ) Srrniii; Tv>rn!\- 
 Iniir ,,t \\w l«rnl\ fur ,;i.es R;al Ivlunn 7'. ail.l 7S !,i ,„k. 
 m-laiue, 7 " I- iTiunled : 
 
 pll 
 
 7.(> 
 
 7.fi5 
 
 ".7 
 
 7.75 
 
 7.S 
 
 Cases 
 4 
 
 ' '' ' \\ li"l> lil'iu.l I ,.\;il,ali-,| I ; iinu-Utn iKHTiinn.alK.n. 
 ri';i(i lilt x\ lAii 7 ) .iml 7 'i : 
 
 I'll 
 7 4 
 7.45 
 7.5 
 
 7 55 
 
 7 ', 
 
 llif -!i-litl\ ,i;rralir,ui,li;\ ,,| vvl,,,)^. 1,| | .,, ,,„n|,,,r>,l willi .rniiii 
 
 lia- l„rn nv, .i.Mii/iM li\ ,ilin,,-i ,,1| nm -ln;,i!, .r. ni llii. Iu|,l. an, I aii|.i';ir. 
 '" '" ''"'■ '•' ''i' '•I'-l lii.il li.in,,-l,,l„n. an.l r.|,r, i,,||v . is', l,riii.ii,'l,.l,in. 
 Iii'liavi's as a wrak .n ni 
 
 I el I)i-til.riii,itc,| 111 1 I .,,-lv 1,1 iiii. ,,,„,.^. ,,, i|„. „,„.|^ .kiiknii 
 
 •''"' ''' I "•'- ''""I "1 pa'alUl H-nr- unli .irimi ainl (.\.,l,,h,l >,\1|,,U 
 
 l«l.«.il. h ua- liimi,! ih.il 111 -iiKT.il. ill, I, Mill, uihk.l 1,, ,,,iia.|„„i,i 
 to thdsf nlitaiiu,! vMili ihr \\ Imlr Mi., „ i. km ih, i.in-r.ii \.iii,iti.,n w.i- 
 rallu-r wi.lo: ir,,„i 7 I i,, 7S .\,, .„|,|,i„„mI mhn uliImh ua. nlilaiiinl, 
 atid the (li'lil,iiii.i!i,.n in. n'l> .crvcl i,, i-..tti|.lualc the pni.wlunv 
 
 llcikf it \va. ,kri,k.l In .il,aii<|nii Hr. ,i.f ,,f (kiil.rinato.l 1.1 1 in the 
 
 Milisi()iicnl niiirsc of the invcstiRntinn 
 
 2. MLurlliiiu-oiis iiinUivl cnsi-s. In ur.jer t.i iletennine «lietlur the 
 h.vdroRcii-ioii ediuxntratiuii ..f tlie l,l„n(| varies from the iinriiial in 
 disfasc, a rnllier larye \ariely nf eiiii.liiii.ii. was .tii,h.(| siyu ihi,, 
 
 2" Tlu- l.I.-.ul »v«» .•..ll.r,.-,! ,:„ !utH- .....niiMnifK a littlf ,lrv ftowtlcfctl .odiJH. 
 oxal;ili- (lr»i Iroin iiirli<>iial<->. 
 
10 
 
 ikUTiiiinatidii- wcro iiiink' in r2 ra-i'-. ciiiiijiri^iiin the tcilliiwiiiy omi- 
 ilitinn^: iirplirili^ ( acutr aiiil >linmK'). !_' i.a~i.'~; dialuli-- iiRllitu-, S 
 ra^c- ; nivdcanlial iii~ulliciiiK\ . 5 i-aM'- ; ^\pliili>. 4 la^o : ilirunii- 
 arthrili-, .^ la^i.- : iivrnicimi-. aiuniia. J i'a~i'~; ni'urd-c-, ,^ ra-v-. ami 1 
 ca-c cai'li 111' |i\(.liiiv. i,niii\ciiia, carciin'ina ui mrk, luniunin .id-. 
 tyjijiiiiil irxrr. |iiR'iiiiiiniia. iiK'niiijidt'iiciu^ im'iiins,'ili-, 1ii1)i.T(.-u1ihi- 
 nkninyiti-. iln 'lrlithia-i~ i laiiiiilicc ) . ]iiilini Miar\ iiKiiia, > (.Tcln a! Iriii- 
 c'rrliai;i' uniiiai. tiilnritikni- |)lrnri-\. i'imiI ami nidiilli ili-i.a--r, aiii^in- 
 lU'linitir <'(K'iiia am! l.raiii Itiinur. 
 
 I Ik rr-iill - wriX' a- Idllnw- : 
 
 I (M >iruin; ~i\t\ ilim- i!','lriaiiiiiaiii .;i- Si\l\ dl' i1r' -i\i\- ilircL' 
 ik'li'iniinati.ni- iwad lictwa'in 7.iiaml 7^f<: 
 
 1.1 1 Ca-cs 
 
 7.6 , 14 
 
 7.65 . 4 
 
 7.7 I'l 
 
 7.75 1 
 
 7 S 22 
 
 I Ik lliri.1.' csii |iliiiii~ mil . uiiniiL; wiiliin lln'^r liiiiil- unc: 
 
 I 1 I \r iii-l.aiKc d|" iraiinialir maita i-i- \v illi a rrailiiK^ i il' 7 '' ' _' i 
 
 .\ Uliriif Upliiiiil Willi a iTa'liHL; iil s.ll , .\ \ ,\ > a-i.' ni rlii-nm. 
 
 iKjiliriti- \\illi lRniaUiiK-i~ I'lnni an at lUf y.i-trif iiK\r. wiiu-t -.riiin 
 
 .ill IT llif iran-lii-ii'ii nf S,-i i ,■.(,■, nf 1iImi.i1, 1i\ i1k' ~\ rinL;i nKlliM,]. i^a\ r 
 
 a riadiiiL: "1 7 ' '~. 
 
 { b ] \\ ii. iKMiiM,! I I i\.il.iud I : lliirlv llinr .K u rininaliiin~>. ni' w liicli 
 
 lliivl\ mu- ixad IhIwitii 7,1 and 7,ii: 
 
 ]>il Case- 
 
 74 I 
 
 7.45 J 
 
 7.5 . , , in 
 7.55 , , , , S 
 
 7.6 in 
 
 11k 1\\ 1. t,-Ncc|.tiiiii« were inslanocs ui' puimKni- .mcniia llii i;i-l 
 cnso, iiiinu'.li.iirK In!!. i\\ 111!,; n-.m-hi-mn, L;a\r a la'.idiiiL; ''i' 7 7 mii tlir 
 whok" liliicMJ. lln- 1u ini; idrnlhal Willi lli.il nii ihe ~c i inn ll '- nl 
 interest in iiile llial lul'.ia ir.iii-in-iMn llir le.idiiR;- nn llir -iiiiin .uid 
 ulinic liluiid Were al-d llie ^aiiK', lliat i~. 7ii I la -criMi.l < .i-r ^a\r ,i 
 reading; nl 7 '.^ in lln' \\ linU' Mdnd. ilii- .ii^.iin In lU'.,; nUiiiii ,d \\ nli ilia I 
 on the •>! mill 
 
 ^. .huliisis. I'l-diii the jireeediii^; |-.ar,ijir,i|4i^ it i- eMileiit that the 
 liy'lr(ii;eii-i(i!i eoiieeiitiatidii of the whole hlood or seriiiii. normally 
 am! ill a ^reat \ariet\ ol' di'^ease ainditidii-. i- Hdi -nliieet to ^reat 
 variations \ smalj siTie^ of eases witli clinieal or lahoratdr\ e\ idenee 
 of aei<lo-i-. i or liotli i has hcen studied, the re^nlts aiii .earing' in Taljie 1. 
 i'iftci'll deterniinalidii- win in. id. ni iiliIiI rase- 
 
 'n, {iftaile'-l rlinira! histories are a{>p<n<k-i| at ih-.- tiit! nf this ji;ij;rf. 
 
\ 
 
 11 
 
 TABLH 1. — Acidosis (Ei(;iit Casks. Fikikkn Di rKRMiNAiioNs) 
 
 Case 
 No. 
 
 Date 
 
 12/.'6/14 
 
 1/ 2/15 
 1-V 3/14 
 
 l/l.l 15 
 l/-'5/15 
 
 1/Jf//15 
 1/18/15 
 
 1/19/15 
 
 I s 1 ,- 
 
 \/ny\s 
 
 H-Ion Concentration 
 
 Whn!,- 
 
 Si-nim Uln. 1(1 
 
 (Oxal.) 
 
 7 45 
 
 
 1/28/15 
 2/18/15 
 
 7 s 
 7J 
 
 6 
 
 I 22/ 15 
 
 "5 
 
 7 
 
 1/22/15 
 1/22/15 
 
 r.4 
 
 7.55 
 
 7 1 
 
 7.1 
 
 7.3 
 
 I 'i;iyiio~i^ :u!.l Remark^ 
 
 Cmiginitnl cystic kidneys; adlie- 
 rciit pcricarcliuiii ; myocardial 
 in-iifficicncy : li y d r o t li o rax ; 
 ascites; nrcinia ; 'plithalcin. trace 
 in two hnurs; CO.- tension of 
 alveolar air. 19.5 mm. Us;. 
 
 Dull; <lro\vsy; 'phtlialein. -till 
 iinl> a trace in two lioiir>. 
 
 .\ciite and clirmiic nepliriti'^; 
 hypertension : uremia ; 'pI't'i'T'cin. 
 trace in two hours; Sellards' 
 te*t. complete decolorization on 
 evaporatiim. 
 
 I'.chimpsia ;* mild toxemia. 
 
 (•'clamp-ia ;* severe I n n e m i a. 
 XII. nitrogen in iiriiie. IS jier 
 cent. 
 
 Thirty-six hours after lahor ; 
 alkali therapy ; iloing well. 
 
 Sarcoma of kidney and antrum ; 
 acidosis; sudden onset of aci- 
 dosis with "air luniRer" : Sel- 
 l.irds' test, complete ilecidoriza- 
 tinn on evaporation; .acetone 
 and diacetic acid in nrine. 
 
 .\fter large doses of alkali; bet- 
 ter ; Sellard^' test, faint pink 
 color before complete evapor- 
 ation. 
 
 Mure alkali: no dyspnea. 
 
 Kespirations asain deep .i ii d 
 ii'ii-y ; .acetone in urine. 
 
 Recnrreiu vomiting; no fo.id re- 
 tained for three days ; acetone 
 and diacetic aciil in urine. 
 
 .Mimentary intoxication. 
 
 .\ftir alkali therapy; ilealli next 
 d;i;. 
 
 \ciiti' and chronic nephritis; my- 
 "Cardial insufTicicncy (slight^: 
 anasarca; tlyspnea ; "pl'tl'^'cin. 
 .55 per cent, in two hours ; ace- 
 tone in nrine 
 
 Much improved; CO; tension of 
 alveolar air, 4(1.1 mtti. 11k. 
 
 * We are mdehted to Dr. J. \\liitridg( William- for permission to -tudv ihe-e 
 eases iicctirring in his -ervice. 
 
i;i\Ni;l.> l\ nil. IIMi|;ui,|;.\-|,,\ . (,\. IM |;.M |,,x ,,| Till 111. 
 
 IN I MM.KIMl.NT Al. I I'.NDI 1 |,,.\s 
 
 An (.•lldV! Ii;i~ luTii ur.ttlv tn -ic if Miiiilar rlum.-r^ in llic pi I 1,1 llir 
 'iliiii'l .-nitl -tviini VMM 1k' 'lrin..ii--tr:iti-.l m I'xprrimml.il aciiin-i^ in 'li ^j ~ 
 \nnn,il~ wrrc inir.-tr.! iiiira\ (.-inin-l;,- with .liluir li\ .In hIi1( .ric ari.i. 
 l'nitn,i,K ,•] i\\(i rxprrnnuit- aiv i;urn in TaMi-- _' ami ,v 
 
 T.\l;[.|-. _'-!'K,,T(«o,, ,,r IC.XIMK'IMI.NT l-tXlKVM.Xnls LxjlCTIOX i,l S/^ II W^kuUlLOUK 
 
 Acid Into a Dog» (1-emalk, Weight 7.3 Kc.) 
 
 I line 
 11. 111. 
 
 .\nit, ..1" 
 
 IICI 
 Iniii-ti .1 
 
 1 1 I. '11 t'c.iuH iiir:ilh.Ti 
 
 >ii inn 
 
 \\li..K> 
 
 l!ln,,.l 
 
 lOxal.) 
 
 111.. 0,1 
 
 I Iran II 
 
 I )ir(.ctly 
 
 lull) Sac 
 
 K(.iiiark> 
 
 .5 44 .5 4' 
 
 4.11(1 
 
 4 14 
 
 4.17-4.'.? 
 
 4..'(, 
 
 4.5(1-4.=;). 
 
 .'-'1 5..'ii 
 
 .=;4.^ 
 
 4<i 
 
 7.(1 
 
 ■45 
 
 7.4. 
 7.4.^ 
 
 ■45 
 
 7.45 
 
 7 4 
 
 I'.n .illiiiit; i;..rMialK 
 
 \" .-^iiUial iliaimc 111 ciiiiiliti.iti. 
 r..«ar.l rii.l ..| mirc-li.iii. rc-pi- 
 
 rati. II- -1..U ail. I .In].. 14 |ht 
 
 minmi . 
 .Marki-il ".iir Iiuhlut" ; rtsjiira- 
 
 tiiin.'i. 1 1 \<ir niiniilr ; piiUf. 31 
 
 I" '4; regular. 
 Ki'«I)irations still ~1,.\\ l.nt ^lial- 
 
 l.iwor; animal 111 iairly hi.ikI 
 
 I'liiiilitidii. 
 \t 5 2ft vcs|iirali..ii' 11 per 
 
 iiiiniite 
 Ktsilcss; i-tniKKliiiw. 
 < MT laMc: no "air hiiiiKor" : Ijintj 
 
 rl.iwii in nd apfiarcMt <li«coni 
 
 flirt; rcidvcrid. 
 
 - Inu.Minii. nia.l, m part int.. .niKnlar. in part Jiii., U-k vein. Mloo.l for .•xaminalinn witli- 
 .Irawn eitlicr trnm jngnlar »r Un wm uii ,,pp„sit,. >i.U-. HCl ma.lc np in 0.,S per cent, salt 
 
 (II-..M u \i. ni.^i'is.sidx 
 
 ill iinliT l<. iKlcrmiiu- tlu- ,1. iii.il liv.ln.mn i..n . ..n.inlrati. .11 n\ 
 llic tiliM.il a- it <xi-i. in ilic l„„ly. ii ,, luvc-siry llial nu a-niviiu 11;- 
 l>c niailc at Im.ly liiiiinTatiiri' ami iimUT llic carl.i.n .li..xiii ir'iMnii 
 vsislitit; ill ihu vi>>.i.K a- -Imun ],\ an.il\M- n\ tlu- aKc.lar ait M.i-l 
 III" till- jmlilislu'rl R'siili> <l(, mil luliil tlu'^i- lu., ri(|iiii(.imiii- and iIktc 
 fori' lid not nivi- the rciutiini. a- I .ninlsf-aanl'' ivxprosis it. .s7»i',7/>\v/(ij,. 
 
 Sl-IISII. 
 
 M Lwt\~u-::it,\ : Rinihim. J^i^chr.. m. \V,. 247. 
 
1.3 
 
 In a ^Hiil> 111' ari(l(i-i^, Iiowomt, iIk'-c CDii^iilcralinii^ arc <if ara- 
 ik'inic rather lliaii "f iliiiiial iiii]" irlaiui.-. ^iiicr w r arc ccHH-cnK-il with 
 \arialinn-. in the pi I rather than with il- aelual \a!ite. 
 
 lilt- more feeeiit eli'etrunietrie niea-iireineiit^ lia\e heeii earrieii n'lt 
 at tile earhuii diuxid leii-imi existiiii; in ihe aKenlar air and in niui 
 ca-e- at n.inii teini'eratnre ( IS C, ). Sn Innu a~ the iiiea-iirenieni ~ are 
 niaile at a enii^tant ten-iuii (jf ratimn dicixid and at a enn-tam teiii 
 piTalure, the re-iilt~ are iil' \alue idr eiiiniiarali\ e iiur|iii>e>. 
 
 T.MU.F. ,^. — Protuciil ui I'm" nimi nt 2 - [nth wi nnis Inhxtmn ,ik X/2 
 
 I iMiRuellUiRlC .'Mill Imi; a i)(i,, (l-IMALl. Will, Hi 7 K(.. I 
 
 Time 
 
 ,IJ1 
 
 Anil i.i 
 
 IlLl 
 Injecieil 
 
 n I I ft lull 
 
 liemui. 
 
 .? ?l 1 
 
 ' n c c. liave 
 
 
 lirt'll i 11 - 
 leeteil. 
 
 .r.'ii 
 
 1 n i ertion 
 
 
 . 11 .1 e il; 
 1 5 c. c. 
 
 4,(1(1 
 
 have been 
 
 injected. 
 
 4,(K) 
 
 
 H-Ion Concentration 
 
 Serum 
 
 (,'> 
 
 Whole 
 
 r,i 1 
 
 (dxal.) 
 
 Iveiiiark- 
 
 <>.'> 
 
 6') 
 
 Seniiii IihIu 1 elli'W . elea: 
 
 l;i.i;iiiniiiK 111 linallie lieepl) ami 
 .-lowly: heart- aetion very 
 forceful ; regular. 
 
 "Air huiifjer" marked ; respira- 
 tion-, 28 [ler miiiiiie. I lean- 
 action foreetiil : regular; -i rum 
 .•illows moilerale amount of 
 heniolysi-. 
 
 In oNlrcmi-; ga-pinK for hreath ; 
 heart still Keating -irotigly; 
 -eriini -how- marked henioly-is. 
 
 ("ea-ed lirLatliiug; heart stopped 
 heating; artiticial re-piration 
 and intravennns injection of 5 
 per cent, solution of -ndiiii'i 
 bicarbonate unax ailing. 
 
 111 the iiietlmd de-erilu-l in thi- painr, hi 1 i- exjin-ed In the .air 
 
 sn lli,il the e,irh.in dinxid teii-iiui i- l.iw . hill a]'|iarentl\ , I'airU emi- 
 -taiil. Ihe uhieeliiin niii^hl he iii.ide that the |dl wmild lUjiend nn 
 the .anii.iiiii lit eailiiio d.i..v.i.l \thieh h.i- e-ea."ed I'riini the hlmid nr 
 ^eiitni ihe inlli i\\ iiiu e\|unnieiil- indie.ite. Imweu'r, that the pi I i- 
 iinl dependent, within rea-mialiU- liniil-, m; the lime el.ip-iny helwei'ii 
 the lakniL; ni ih,' hlnnd ;ind the de|etaiiiiiatii>n d the i IL iir.i\ided the 
 
14 
 
 tuiic r<mtainini; l>lo(nl i> kcpl .^luppiTcl .iii.i on icc, a- will be .-rcn fruiii 
 tliL' h)ll(j\\ iiii^ ; 
 
 Strum ()NalatL(l I'.lood 
 
 ImiiKili.itilv r 7; ; ;; 
 
 After -"/li,,iir> 7,;5 7 Vi 
 
 Alter I'* huur- 7,7? 7 V^ 
 
 \ftiT _'4 liMi,,-. 775 7'5'; 
 
 ll, iinutxrr. hi. mm] i, drawn .iiivrlly ini,, a ~ac iiiiiin.T-Ccl in a lube 
 01 valt >nitition and the rea.hitL.' c.^niiiared witli ihial :niiii the bldcid 
 drawn aii.l dclefiniind in ihr 11-nal inaniKr, -h,-;hi xarialiun- arc 
 cin-dnnlcred 1 -ec h".\|nriinent 1) 
 
 l'.> llinr.,iiL;hly diakin- ibe hi 1 ,.r -enini in liu ;iir, il- ah^ahnitv 
 
 i~ iiUTca-rd. ThriTl(.iv, diakin- ^M.nld. ni -rneral, h. a'.ni,l,Mh unk-- 
 it i- di-ired id detrrnnnr the |dl at a /(.m (i i_ lenMcii, Such --UKlii- 
 iia\r hern carried ..n liy I )r. 1 ). \\ . \\ ih,,n. 
 
 I be mlhienee ni the leni|iei-alure nn the readini^- ba- been deter- 
 innieih and the re-nU- appear in tijc aee..iniian_\ ino- tahiikitidn. 
 
 TMUJ 4.- \-Ai(iA]iu.\> ,x llvimdi.i.x lux Cnci n tkai ion IXa; to Cii.iNCks 
 
 IN TlMPIHATlklC 
 
 \\1"''' I'.l I Whole liloo.l 
 
 li-riiperaunx' Situni (iKal.l Si riitii (Oval) 
 
 •^" ^ ■ "Si 7,5 7N 74 
 
 ^' C. 79 7.05 7.9 745 
 
 I hi- elleet ni leinperalttre lia- hi'en reen-m/id In prexi.in- worker-. 
 '' '- ^-^i'lenl ih.al m dr.kT In nhl.iin e. mip.ir.alik' re-nb-. teniperaliire 
 ;-(intn.l 1- neees-ar> , 1 Inr nie,a-.ni enieiil- ha\e been ni.ide lieUveen '( 1 
 an.l .M (■ 
 
 ■| he di:d\-,ile ..!' the hi. km] ..r -enini i- di-bliy nii.re a.i.j than lla> 
 on-ni.d ni.itrn.al. i' ..ne .an nid-e fr..ni e\; eri n.'iiN .-.irrie.l mil will 
 ilihite MiilniM hie.irhi.n.iie -.ilnli.iii- ei Mil.ainin;' e.irhi;ii .li..\i.l, .and pb,,- 
 (ibatcs (if .ippr.iMin.alely ihe pi I ;nid ,-. ;iu-eiilr,ali, m ..i bl.ni.l. d'hal 
 llie \.arian..ii .S ,1 .■..iiM.anl ..lie 1111. ler llie ,-. .n.lil 1. .11- .,f llie nielhii.l i- 
 -'■""" ''.■' 'li^' 'l''-^' ■•.i^i-eeinenl ..f .hipiieale .leterniin.ali. .11-. ulii.b b,-;- 
 beeii nierre.l li. pia'\i..iid\ in llii- j-aper, 
 
 i'.v .a e.iiiii i.len.a-. the re-llll- ..hlaineil fi.,111 the .ii,il\-,ile fnnii llie 
 
 "ll"!' ''1 1 ■H"l ''""111 -enini e.irre-p..ii,l \rr\ .l...el\ l.i lli..-i> ..hl.iine.l 
 
 .lire.-ll\ by die ele.iri.-.al nielli. i.l wlun die l.iller ii|.;i-iireiiieiil 1- in.i.l.' 
 •ll !^ < ■ ■■ni.l .11 I .Mrh.iii di.i\i.| ien-i..ii ni ti 1 nun II-, 
 
 I in- ai;rt.iiienl in re-iilt- 1- pn.hahly ,lne I., the aiil.i-. mi-ne eh.ar- 
 aeler .1 the iw.i 111,1111 -.mree- .if > rr..r iii\..l\e.| in llie iiielli...! ..f dial- 
 \ -1-. naiiul\. I..-- ni eafb.in .li..M.l ten.lin- 1 , oi^j. hi-her. tb.il 1-. nmre 
 .ilk.abiU' le.i.hiiL;-. an.l di-pn .p. .rii. nnie .lial\-i- ni .aei.l an.l h.a-i,- ei.n- 
 
 -ti.ii.i.i, » ^..1.11.).. 1..,, .... .1., * ;. , „-, ., .; I „ 1- 1. .... 
 
 - ■ •■■■ I-.lie.reai.itl leat!;:;;;., ;■ . .r .aillk ,ii |.iir- 
 
15 
 
 l)oses, particularly the >tiuly of acido.sis, the iiK'thoil of dialysis is (|uite 
 as aiiplicalile as tlie electrdiiietric method, aiul yield', results in rreneral 
 coni])araliie willi tlm-e ni ilial iiietli(p(l. It ha- the aihantayes nf .siui- 
 plieity and ra])icHly. 
 
 (■( iNCI.rSKl.NS 
 
 1. The indicator nuIJKjd (if dctcrniinin;,' Ildun cnnccntration is 
 ma<le ap|ilicahle tn hhidd and -t'rnni hv utilization of dialysis throu_i;h 
 a collodion nienihranc. \\ hich exclude'- the disturliinf^ influence^ of color 
 and ol jirntein-. The nictlioil i> simple, accurate, rapiil ,and well 
 .id.ipted Inr clinical u~e. 
 
 2. 'The technic con-i-I- <if diaU/ini,' .^ c.c. of hluod or -eruni ,it 
 room tcpiper.iliu'e ;is„'.-iiii-t .i c.c. of OS jier cent, --alt -olutinn lor li\e 
 minute,-, addin;^' an indiiator ,-inil comparini,' with colored -tand:ird 
 phosiihate mi.\lure- of known ll-inn coiicenli.-ition. 
 
 .1. 1 'llciiiil-ulplioneplulialein i- eniph i\(.'d a- the indicator in this 
 method. ll i- lunnd to exhihil ea-il\ di-tini;in-h;ihlc \.iriatinn- in 
 (|nality of culnr, widi nnnule diffevuice- in ll-inn concenlration 
 helwcen the limit- pllod .and pi IS. 4. 
 
 4. ( )\;d,ilcd lilnnd from norm.'d indi\ i'hi.d- t;i\e- a dial\>ate with 
 •a pi 1 \.nyinu' from ".4 to 7.i<. while th.it ui -eruni rani;e- from 
 7.(1 to 7.S. 
 
 .^, \ .iri.ilicio- frnm the-e liu;ure- toward the :icid -i.le were encoun- 
 tered onl\ in cnnditinn- which clinicillv . .-md fr^m the -tandpoint of 
 the lalKjr.-nnrv hndini;-, e\iilenccd an acidn-i-. 
 
 <i. In ,1 -ni.dl -erie- nf clinic, il acidn-e-, the -erum- \aried from 
 7.rr tci 7 2 anil llic uxalated lilnnd frnm 7..i In 7.1. In cspirimental 
 ;ii'idn-i- in dn^-, ,•[ pi I nf i<'> ha- liecn uicnnnlcred in Imih -ennn .and 
 lilond jn-l lictni'i- de.-ilh. 
 
 Kl- I'l iKT I ll' ( ASl'S 
 
 Cx-i i li S (Mt'ilir.il \.. ,11441 I, a ulnt. hi.lii. a.ucd 4.!. Uiagnosis: 
 ciir.m iiil.al ry-in- kl.|nc'\ -. ailluri lit |'cru-.'ir4unii, niMnurilial iiHiiliicii'iu-y, t-denia 
 of lungs, hydrotliuiax, mikI iiri'iiiia. .\ilmitt< d Dec. 12, 1^14. 
 
 The patifiit had ^ond general liealth unlil ten yuar^ asn. He had nin-ciilar 
 rlu'utnatism at eight. I'.ightcon years ago he liad an attack ni "acute Mnght''- 
 di-easc," uiiich ounliiied him tn liod fur two ui'd<-. Ten year- agn. .'i Uiinp 
 uas discoviTed in thi' I-.ft tl.iiik. l-lx|il.iralnry opfratioi; revealed congenital 
 cystic kidneys .md .'i l'< w nt llu c\-ls in the right kidney were pinictnred. Five 
 years later the left kidney aNu heeanic palpahle. 
 
 The prc-ent illness began live months hefore the patiMit'- admis-inii. uith 
 attacks of noctnnial dyspnea, which f^rnihially luciiiu' wnr^f Thri r ui'iks 
 ago swelling of the legs appeared. 
 
 i'!\aniiiia!ioii showed an iinileriionrished man. dyspneie and orthnpneic. Signs 
 iif lliiid uire present in both pleural sacs, with biilililing rales over the lower 
 lobes. Tbt'r- w.i- m.irkid cardia;- enlargement and systolic retraction of inter- 
 spaces lateral In ,i;i,\ llroadbent's sign was present. ;»lso a protodiastolic 
 i^rillnji I hero was a f.'iint -y-;to|io blow :it the rijiex. which was trattsmitted to 
 the axiila Ihc pnliuonic second soniul w;i-. accentuated. The abdomen was 
 
16 
 
 ni-iiii.l>,l \Mili lliii^I. A laryi nla-^ >-.vriMl uiili b.wsc- u.i- palinl.K- in each 
 llaiik. Till' ln(i- u,,- iiilarycil ami ttiickT, l-aliriia nf Ki;, v\a- ii(jUc!. 
 
 Kipi-.iU.I l>li«i aKulplioiuplillialciii trsts vli.intcl tile iNrr.li.n ,,f only a trace 
 111 l\V(i li'iiir>. 
 
 Ill- I I I.. I<ii-i..ii ,.1 alwnlar air \,a-: Dirmili.r ICi. .M ,1 nini. lit;; I ),crnili(.T 
 IN. I'M iniiK llu 
 
 I'll, ln.li-.iurii li.'i (.■'inr(iitrat|..n .'l 1,1 1 ua^: Drreinli. r -'d. « Imlv i,l,„„l, 
 
 7.1 ; Jamiary _'. ~i i mii, 7.4 
 
 'l"lu- ncMliu-Mt.ni iiitr.Mjin ..f the M 1 ua- 11,-^ my. ]<i-f hiin^lrnl cailiio c.iili- 
 
 iiu-ti-rv 'I'lu' 111 I pri--iirf r.iiiycil iinm 1,-,=^ i,, \}^ nim. II" ---li^lir llli t,. 7^ 
 
 .liasl.ilic 
 
 Till' iirinr wa- pak- ami cKar vvitli ,i -pioiiic Kra\ity oi l.lins p. IdlJ, A 
 trace I.I allmniin and liyalinr ca-l- ueii dli-crvcil. .\i-ftnno was |iri-int on 
 -oviM-al oi-ca-innv 'I'lu- p.iticiit «as cliM-hari;, <l Jan. 11, I'll,^. -..iiiruha! iin[irovcd. 
 
 Cs.-i --C. () P. i.Meilieal .\.i .W„?S,^i. a ulntr man ai;..l 4,1 1 lia..;nosis ; 
 artiri.i-ckToM~. acnte and .-lirnnic liciibritis liypcrtensiun and nroini.i .\iliiiitt<d 
 Di-c. 1. 1<;14. TIr' patient Iiad liyplnli-. twenly years a.nn ,ind ua^ triati 1 liy 
 intermittent cour-es of nit-renry ut I'nnr \ear- 11. had nne.implieaied nplmi.'l 
 fever t«emy-tlirer year- an" and fr..iii I'liS i,. p 1_' drank luaviK, 
 
 The present illness hei.;an two year- as., uilli -, \ rre lieadaehe-, u.Miallv coni- 
 ini,' on in the early iiiorninK hour- and heeoiniiiL; Ljradua!l\ more severe. Pnl>nria 
 and nycturia -oon f.illnue.l. Ihrec month- .a.i^o he had an attack of -luhkn' 1 .-- 
 of conscionsncss with ,i ueiier.ali/ed conMiNion lastin.i; live or -i.\ minute-, .ind 
 folkiwed hy prnfn-e \ ..initin.i;. Me was in Led fur four day-. There ua- no 
 paralv-i-. laKlit weeks hefore his a<lmi--ioii M ,,1 was di-co\er<d in llie mine. 
 Ill' w.a- pnt to lied and has remained there -in,e. Iw./ in.inlh- a.i;,' his eye- 
 sight hegan P, f.iil ; In i- imw iinalile Im reail, 
 
 I'.xaminalinii -hnwed a fairl.v iiomi-lud m.in wiili ii.i-ly cnmplexion and 
 decidedly anemic appearand, dlie hea-t \v,i- nndn .itil> enlarged. There was 
 a presystolic gallop, with nmmri.iis e.\lra-\ -i..U -. j'hr -econd aortic -oniid wa- 
 loud and ringing. The radials anil brachials were dilTiisely thickened; th, -,1111- 
 pnrals tnrtnoiis and sclerosed, .\dvancid .•iHMimimiric retiniti- w.i- nitnl. uiili 
 fie-h hemorrhage in liotli eyes. 
 
 The III. .oil count showed red iil.i.iil cell- .l,-_'i i.l 1 11 1 ; while 1.1. ...1 cell-. 11.4(111; 
 lu 111. .uL.liin ( S;ilili 1 <<5 pir cent 
 
 l'..\ Ilie phenol-iilplioiieplithalein te-t, e\creti.,ii 111 |«.. |i,.iir- ..n iiiinier..ns 
 occasions ranged fri.m a trac. to 16 per cut. Dec. inker ^. llu iiali.iii was 
 V. uniting and helchiiig a' frei|r,.iil interval- aii.l wa- \ei-.\ .lr..w-v. 
 
 .Sellard'- test on the I1I0...I -eniiii -h..we.| c.ini|ilete decilori/ati.ni .111 e\ap..ir- 
 i/;iii..ii; 111. c.ilor on ad.Iitioii ..f w;itir 
 
 111. h.Mlrogeii-ion conceiilratiiin of the sermii w;i- 7. J. 1 iiiriiii; the patient's 
 -ta\ 111 the ho-pital the likiod pressure ranged fn.m Jd.^ t.. 174 -v-t..lic; I,i6 to 
 lii,'^ .li:i-t..lic. 
 
 11.1 tirine in fpi:mtity wa- l,!L'.s 1.. .-.{L',s cc m tw riii\ -f,,nr li,.m-; its spe- 
 cific gravity, l.l'll.s t.. I.IIO''. Siimk;, :it lir-1, it lucinie cl.ar Willi th.' polyuria, 
 then hlo.idy again. l-'rom 2 to .s gr;iin- ..f .allniniin p. r liter wi.e pre-cnt. 
 Ihaline, granular and Mood casts were ohservcl. The ,)alum rrf .-ed tr. 
 remain for treatment .iiid ua- di-charged tinimprov. .1, 1 )ec, .'_'. I'd4. 
 
 C.\si .1.-1 W ( ( thstetncal Service), a colored girl, aged l!^. was admitted 
 Jan. 8, I'l.r I )i;iaii..sis ; pre-edamptic toxemia; po-tpartiim eclampsia, d'he 
 girl was nine month- pregnant. On the day hefore adnii--ii.n, :dl.iimin an.l 
 casts were found in the urine, and the patient wa- a.Ki-.d to enter th.' ho-pilal. 
 I)uring the cottr-e of the next few days she ci.nipl,iii-..il .if epigastric di.scom- 
 f.rt ami frontal headaches of increa-iiig severity 111.' ->-t..lic hlood pressure 
 w,i- I'd mm. Ilg. ^>u January 12, -light edema of the leg- ,ipp.;ir. .1 
 
 I'll January ]^. at 7;.i.^ a. in„ spontanenus lakor occurre.l Ten minutes .ifter 
 the hirili ..f tbv •Jidi! the palienl !lad a l.^p;cal eclamptic convulsinn of mo. k late 
 
^i'\i'nl> lii-tiim luii niiii'.iir- llic i. III. Ill |irr--iiri' i-wtnlii'l ,'it tin- linn' ua- 15(1 
 mm. lly. Tlu'ri- ucri' lun niurr i-i.iivr.l-inn- that ila>. i^'nllnw mi; lilrciliiit;, 
 piiriuiinK ami '•weatiiiL;. a iininial iinnali -iiiur iii-iuil. 
 
 'I'lic li'.ilriiyrii-ii.ii i-nm-ctitratinii nf tile -mmi I'litaimil at vvnt-i\'tiiiii was 
 
 Tlir 111 ii^iii-iitrm iiiiriium iii llir Mi ml ua- 4_' iim pir Inil i-.c. 
 .I.MUiar> -'4. llir iihrri'l-iilnliiii!r|iliilialiiii ir-t -linucil 53 per cent, c \rriti.iii 
 iti tun Iniir-. 
 
 Tlir .mitiiiiiia iiitrii^rn m ihi.- iiriiu' : 
 
 January H ;= 5 per i-int 
 
 January 14 = ') \n-r it iit 
 
 Jaiuiar\ Id = 7 [u-r n ii; 
 
 C\si 4--.M, K. I ( ll.-trtrir.'il SirviiTi. a uliitr unman, a(.;ril I'', ua- ai!milt.:il 
 jjii J.-i. 1"I.^. I liai;iii 1-1- : (■i!am]i>ia ; -pi mtaiu mi^ lalmr. 
 
 I 111- paluiit ua- a -irmiu. ucll-ia mn-luil pvmiipara, niiir niiiilli- prr.miant. 
 'i'lu- pi'iiinaiicy hail !naii iii:r\ laitfiil nnlil llir mnrniiiK ol' Janiiar\ J5, ulirii. 
 at 4 a. m,, slu- lnuan tn havr -iaiit hrailarlir. naii>-ca and M.imtmt; Shnitly 
 al'li I'uarij -lu' hail nni- emu iilsimi. \\ In n M'cn in thf out-patiint -i i\ kc -Ik 
 ua- i-iiii-i-iii;i- lar, ilmu-y. Hhiml piT--urr (-y-tdlic) was 150 inn. lit;; tlii- 
 pul-r Sll pir miniiti' Tlu' iiriiu' -linunl S grains nt alliiimiii pc-r liter. 
 
 Slu- ua- ailnnttt-il tn llir uaril .at 7 \i. m. mu-nii-cinn-. i-\i\ailinuly rr-tlc--, 
 anil haMiiLi tNpiral. nimU-rairly -r\,-rr i-clainptic onnviiKiuiis at intir\al- nl" 
 ihrri'-qnarli r- nl" :iii Imn;-, Tlu- hlnnd pia'--nrr ( .■ivstolic') was ISH mm. lit: 
 Tlu-ia- u.a- iin il^-pma ami \aT\ -liijh! i-ilcma nf Inui-r U-i;- Slu- had ^c\rn 
 i-ninin-iiiii- in all. tlu- l.a-t niauirraii; at 5 a. in. mi the ninrniiu; ■•> Jaimarv J'l. 
 illnnd Iiir lljiiromT. mn dctt-rminatinn. nlitaim-d ,iMrr tlu- third d iiiMil-mn. t;,a\c 
 a rt-aclini; uf 7.5 on ibc scrum; 7 .'• nii tin ulinK hi I 
 
 l-V-IIouinR vciK-cctidii. pnriiatinii and -uintinj. and tlu- ,-idniiiii-tratiiin nf 
 41) ^ram- of fo<litim hicarhmiati li\ -tni.i.-udi-tiilK-. tlir i'iin\ iil-mns lii-allv r<a-nl 
 .•imi ■■nn.icii'iisiu -s rcliirned mi tin- ninniiiiK nt Jann.arx Jii ( )ii Jamian, JS a 
 lUad child wa- Imni -puniaiu mi-ly. 'I'lu' piu rpi-riinii \\,i- nM-\ i-ntlnl. 
 
 riu- amnim-ia ritri-mii --■■ -.iriiu- dnriiu.; llir tlirn- d.n - |ua-oi-i|iii-.; iU!nar_v 
 
 r.iiu^ti', trnin 1,'< !n Id pn- 
 
 Janii.ar> 2'i. tlu- liMlrni;i-i ci nu'riitratimi nl lilnnd u.-i- fur tin- svriim. 7 S ; 
 
 fnr ilu- Uhnh- hlnnd. 7.5- 
 
 Casi. 5. I.. (' (ll.-irrii-t Lane ll'inu- \n. ii.5.'Si. .i ulme l.ny. a:;od ^. ua- 
 admittc-d Jan l.l i' 15. Diagridsis: .sarcmiM nf ilu kidiu > anil aiitrnni ; .-u-idn^i- 
 
 Thr l:n\ had lu-cii .'i nnrin.-il. hoalthy I'hild up tn ilim- mmirhs lutnrc admi^ 
 -inp. ulii-n. fnlliiu ini,' .'i trauma tn tlu- lai'i . a -m '' ml -urlliiu; appt-.-ircd mi 
 the li-ll clu-ck, suh>(.-ipU'ntl> pii-him; tlirmmh In ih, -nf nf tlu- iiimith. ■riimii.ih 
 painless, this swcllint; had i;railiiall> ymun lar.ci-r. 
 
 l-'.xaiiiinalioii shnui-d a ucll-i'i-vi Inpi d. will rmtri-hid rhild Tlu-ri. ua> a 
 firm ma-- in tne U-fi clu-rh. apparently ari-ini; m th.- antrnm. and pii-hiiit; dnun 
 the left .side of tile h.ard [lalate in the mouth. There ua^ a nmiular. 'irni nia-s, 
 the size of a man's t'ist. in the risht nmhilieal reHimi. 
 
 January 16: Breat'rni; w.is rapid ami deep. 
 
 Ja-iuar\ 17; There u:i- niirked dy-piiea; the re-pir:ilimi- ueri 4l) per 
 minute 
 
 January IS; Uespiratim;- nnK-ii:ill\ d<ep. uitli ;irtii:il "ini- liniim r." The 
 uritie ciiiitaineil aeelr-n'- and duueiii- aeul. 
 
 Sellat'd-' te-t -linuiil cnlnrli-- mi rnni|ileie e\apnratinii Tlu- liydn lieii-ion 
 oonceiitral nil ni the sc rnm u.is 7 2. ( Ine hundred and -i-\ eiit\ -ii; a- e e. of a 
 ? per cent, sulutum of sodium hicarlmnate was given hy the .Murphy methnd 
 Till- was followed hy 175 c c. of a 4 ]ier cent, solution nf -ndinm hicadimiate 
 iiitr;n eiuui-ly Alter the lir^t 5ll c c. r<'spirations heeame nmieeahly le-'^ Iiliored. 
 .ii'il -linrtly .litrr the cninpletimi nf the injeeti(iu the child was f|uite ci mfori- 
 
 .,1.1,. s;,„.i11 ,1,,-..; .,.• l,;.-,rl.,.i,-it,. >.r.r.. r, ,nf I ■ . .>, ,1 l.t „>.,., tli 
 
IS 
 
 19: 
 
 Scllanl-' ti-t shout'd 
 
 a faint jiink iclur luforo coiiijik'te 
 4? I Ik- child un^ 
 
 .laiuiarv 
 (.■vaporatiirii. 
 
 Tllc liyclrciiini-ion cunrrmratinii of tlu '(rum was 
 liroatliiiii; nuriiially, tlioiigh im'iitally rallur ilitll. 
 
 During ill'' siiccccdiiii; weeks several radiiiiii treatment- ueie administered 
 and i; was Iiclioved lliat the abdominal nia<s had grown somewhat smaller. 
 
 On I'eliriiary 1>* the respirations became suddenly deep and niii~y. The chilil 
 seemed drowsy. The nrinc showed a trace nl acetone, Imt no diaeetic acid. 
 The patient «as Kiven alkali by nioiitli, 
 
 rile li>ilr('nen-ion concentration oi the sernin was 7.,V 
 
 Ijn lebruary 25 the patient was discharged, lircathiii'.; auain wi- iinrmal 
 though the general condition was tailing. 
 
 Cn.sk 6. — .\. McK. (Harriet Lane Home), a uliui l)n\. ,ii;ed (>, \\a- admitied 
 .1.111. Jl. I'd.^. Diagnosis: recnrreni vomiting. 
 
 The boy had been a normal child except that hv li:i.l ;du,i\> luid ;i "ueak 
 stoniacii." Three days before a<lmis.:,ion. following :in imliscretion m iliet. he 
 coniplaineil of abdominal pain. Next (lay he began to \.imit :i]id since then 
 had not retained any food except a little orange juice. IK ^united without 
 any apparent etTort. and after vomiting seemed tiuite well. 
 
 liximination showed a -sparely nourished chibl. apparent!) ipiitc i^riiKiI in 
 all res])ects. The urine contained acetone and <liacetic acid. I lie In dniyeii-iou 
 concentration of the blood scrum wa- 7 5. I'ollowing a «ell-M gulated dieiary 
 regimen, he rapidly improved ami wuit hinie 
 
 C.vsi; 7.— \'. D. ( Harriet Lane Home \'o. 6,028). a white girl, aged 2 months. 
 was admitted Jan. 22, 1915; du i Jan. 2,^, I'llS. Diagnosis: alimentary intoxica- 
 tion. 
 
 The patiiiit wa'- a fnll-lerm. apparently he.ahny. child. Sixteen days before 
 admission she began to vomit after every feeding and had frequent green stools. 
 The vomiting and diarrhea persisted up to the time she was brought to the 
 ho-pital. 
 
 F.xaniin:ilion showed a -ni:dl. moderately well iioiii i-lud baby, conscious and 
 crying fretfully. Slight cy:inosis was |ire-ent I he n spirjiiory r:itr w;is 
 increased, the rc-liiratmn^ being full ancl deep White bbiod crll-, 2J.ir(i The 
 stool, large, green and watery, contained nuicns and food rc-idtii. 
 
 Scllards' test showed no color on evaporation or on addition of di-tilled 
 water after evaporation. 
 
 The hydrogen-ion concentration of the serum was ".4. 
 
 Intensive alkali therapy was given, both intravonou>l> and >iibctUaneonsly. 
 The respirations nuproved a little, b.ccoming sh.-dlower, Tlun wa- one slight 
 convulsion and con-tant convulsive twitchings of the f.icc and extremities. 
 
 The Iiydrogcn concentration of the -eriiiu .after inti:i\enous injections of 
 sodiiun bicarbonate was 755. 
 
 The respirations gradually became shallower and more infrcfjucnt and the 
 baby died at 4:55 a. m. on January 23 There ua- complete anuria during the 
 stay in the hospital. Partial necropsy showe<l only enlargement of the iue>eii- 
 tcric lymph nodes. 
 
 Casf. S — M 1". I Medical Service), a white man. ageil 211. was admitted 
 Jan. 7. 1915. Dia;jno-i>: acute and chronic luphritis, hvperlension. and myo- 
 cardial insntTicicncy. 
 
 The patient had frequent sore tliroats. Eighteen months ago he began to 
 have morning headaches. For three months, dyspnea on exertion was noted, 
 beconiiug progre-sively more marked. Six days before admission the feet and 
 ankles began to swell, and the abdomen and face lia\e -irce become edematous. 
 Anorexia, dizzy spells and cpistaxis have occurred during the past week. 
 
 Hxamination showed an ovcrnonrished young man, dy.spneic, sallow and 
 pale. Marked oral sepsis was present; the tonsils were large and ragged. 
 Crepitant rfile- were heard at the left base. The heart was marked.Iy enlargei! 
 
10 
 
 Tlic liver was enlarged aiul tender. 
 There was a moderate secondary 
 
 01 i-xcrt-tion in two 
 7,4, Tlic- nonprotein 
 
 There \vn^ a -nappiiiR aortic secoml .~ounil. 
 Edeina ot I'ect and aiil<le> was pn sent, 
 anemia. 
 
 The W'asserni.mn tc -t wn-- neuativi 
 
 The phenolsnlphoneiihlhulein test showed 55 per cent 
 honr*. The hydrogen-ion concentration of the sernin wa> 
 nitrogen of the blood was 3() mg. per IIXI c.c. 
 
 Jann;ir\ Ji': The hwlroyen-ion concentration of the scrnm was ".6: whole 
 blood, 7.5. '1 he C<-1.. tension of alveolar air was 40.1 nini. Hg, 
 
 The uinif ii; i|"'in'i'y uas 1,500 to 2.000 c.c. in twcnty-fonr honrs. The 
 specitic gravity w.is l.ulJ to 1,013. There were 1.5 to 2.75 grams of albnmin 
 per liter. On admission, red blood cells and acetone were observed, which subse- 
 qnently disappeared. N'nmerons granular casts were foimd. 
 
 The Iilood pressure rangeil from 170 to 1,311 nmi. Hg systolic; 110 to 65 dias- 
 tolic. The patient is somewhat improved, lie i^ still in the hospital I.April,