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NEILSON, MOUNTAXK STREET. - O. )f *7 m ha\ nil Th I it. wit I gle i me\ ^ the en to j inc De Jul lou arte ing sen INTRODUCTION. J- HE improvements in Dentist- xy since the revival of learning have by no means kept pace uith ihose of the other arts. 21ie following will account for it. If I am severe^ it is because I wish to impress your minds^ with such a sense of your ne- glect as will effect your amend- merity as respects clea?iliness to the teeth, ^c. I wish to height- en your ideas of its utility^ and to point out farther methods of increasing its benefits. Though many think it doubtful whether Dentists are beneficial or hurt'- ful to the teethj yet all will al- low the necessity and import- ance of these useful and attract^ ing ornaments. The united ob- servations of all the ingenious A 2 11. and sensible part of mankind tvould do more in a few days towards the improvement of of Dentistry i than those who make it their profession^ in an age. I am sorry to observe, that jealousies and fears of many persons have been the source of their misfortunes : I need not point out the aggra- vating mischiefs of using per- nicious articles for the teeth, or trusting to Nature^ s preserva- tion ; but so it is, the unhappy people are a nuisance to them- selves and disgust the nose and eye of the observer; but cha- rity to themselves and society in general, such customs should be obliterated. Whenever thisi shall be the case, that curse the tooth ache and its miserable con- sequences will be no more, but sound even teeth will substitute in their stead. I L ?: \anktnd w days lent of se who y in an bservey 1 ars of ^en the nes : I aggra- g per- ^eth, or eserva- thappy ) them- )se and it cha- society should )er thisi rse the ble con- re^ but bstitute SUMMUM BONUM. X HE utility of a Treatise on a subject of such universal im- portance, respecting the ma- nagement of the Teeth, what- ever may be the fate of this publication, it will be a cause of gratification, if it do but lead to a more finished pro- duction from some abler hand. I shall, therefore, only give descriptions, which to be ge- nerally understood, will need neither the aid of technical phraseology, nor the prior ac- quaintance with any prelimi- nary science* The teeth are so important, in dividing our food, as well as in conversation, and are so highly ornamental, as to ren* A 3 ! ' der it a positive duty, with e- very one, to stud^ the causes which lead to their premature destructidn. When through negligence, many of them have decayed, and the remainder are rapid- ly falling into the same con- dition, it is pleasant to learn, that the disease may be stay- ed, that the places of the ab- sent teeth may be supplied with others, both useful and ornamental ; and those, which have become partially diseas- ed, may be rendered of ser- vice to us, as long as we con- tinue our attentions. The hollow cheek, the pu- trid saliva, which contaminates the whole system, the foul breath, days and nights of our agony, are not the worst con- sequences of our neglect. Are 9 with e- caiises nature cayed, rapid- e coii- leariip i stay- he ab- pplied il and which iiseas- >f ser- d con- le pu- inates ! foul ^f our t con- ;. Are 4 we not all links in the great chain of society, some more, some less important, but each upheld by others throughout the confederate whole? In whatever situation we are pla- ced, our greater or less degree of happiness must be derived from ourselves. The veil of mystery which still hangs over Dentistry, ren- ders it not only conjectural, but even a suspicious art. This has been long ago removed from the other sciences, which induces many to believe that Dentistry is a mere trick, and that it will not bear a fair and candid examination. Dentist- ry, however, needs only to be better know n, in order to se- cure the general esteem of mankind. Its precepts are such A 4. St f . l' i V ! j h ■ is every wise persod, is eeth : leces- think * ten- fulor ruths linds )eau- lean- sab- any ^4th€ well [uire ush. f Though we should be careful to clean the teeth a/ter every meal, it is more particularly necessary before retiring to rest ; the foulness which has been all day accumulating, is thus prevented from commits ting its ravages during the ni'^ht. Ahard open brush with a composition made into a paste, is preferable to any pow- ders yet known ; it should be used at night, after which a waxed thread should be pas- sed between all of the teeth, for the purpovse of cleaning them, a particular experience is our best instructor. When the gums are spungy, and liable to bleed from the slightest touch, persevere, tho' apt to occasion much bleeding at first, eventually gives them A 5 HH^V'f^ If l^^m.' I ._ much firmness, and in a short time effects a cure. IRREGULARITY OF THE TEETH. The milk teeth are seldom subjectto anyirregularity with proper attention paid to the removal of the first set of teeth the regularity of the second may be anticipated ; and this attention must be kept up, un- til the first set are wholly sup- planted hy the permanent teeth ; an event, which, as be- tore mentioned, does not com- plete Itself until the child has attained his twelfth or four- teenth year. We are oftener called upiu. to cure irregularity, than to prevent it ; I shiUl therefore make a few remarks on those " "■"" -^.^ ^^^-^.^^^^,^g^ which a short TEETH. seldom ty with to the f teeth, second id this ip, un- y sup. lanent as be- t corn- Id has four- upou an to :*efQre those vhich 7 appear best suited to our pur- pose. - When the permanent teeth have displaced the fust set, the former are often observed to be so much crowded and de- ranged, as to produce the ap- pearance of unnecessary pro- fusion in their number. The deformity thus occasioned, and the greater aptness of the teeth to decay, from the col- lection of foul matters in their numerous interstices, render it necessary to restore them as nearly to a state of perfect re- gularity as possible. The jaw of a young person is so soft and yielding, that a tooth taken out at a consider- able distance from a deranged tooth makes room for it ; the teeth on each side of the one A 6 I ii 8 extracted will soon fil] up the vacancy ; in this way many have secured to themselves a set of handsome, useful, and Jastmg teeth. Compressi- on of the finger will usually bring teeth into their proper places if room be made tor them, and if attended to be- fore age has given too much firmness to the jaw. This ope- ration is extremely easy in children; quite difficult in those who have all their teeth, (thirty-two in number ;) and not at allpracticable with those whose ages are far advanced. CARIOUS TEETH MENDED. If people were more acquain- ted with this excellent mode of stopping decay, but few teeth would require extracti- ^lu me first appearance of [ill • up the ^ many ilves a useful, pressi- isually proper ie for to be- much is ope- sj in lit in teeth, ) and those need. 9 disease is a brown, or yellov ish discoloration of th( ena- mel. Teeth in this state should be repaired, which prevents their getting worse, and cures the fetor of the breath, which invariably arises from foul teeth. Roots may be cut or filed down to the gum, and mended as to be useful last- ing and free from pain as sound teeth, and likewise pre- vents the deformity of the jaw. Our task wi'l be perfor- med, if we do but convince our readers how absurd it is, whenever they are in pain, to run to the first person who will take out their teeth with- out asking a question. Some of the most pernicious practi- ces, with regard to the treat- ment of the teeth, have alrea- .1 rv ^-in««Ti i h A * V^AA §^4L*»^'t from make of the tfile; alrea- nting tions. nand js, to kmg, i best tdthe inju- iss by vould sinte- at we fferts ;eeth., doing anger iisco- 13 ^ aring tlie enamel, and forcing litself between the teeth md gums, and in the end produ- cing pain and inflamation, ul- cers andrecessionsof the gums, foul breath, caries and loose- ness of the teeth until they are entirely destroyed. Tartar shouldnot be removed bypow- ders, lotions, &c. &c. for what- ever dissolves or grinds it away will injure the teeth and gums. Quackery has so many charms that there is but one duection in this case that/ may be con- sidered as generally applica- ble, which is the skill of the Dentist. I mean not those self- syled Dentists, who have de- stroyed the confidence of ma- ny people by their mistaken quackery f^M" the teeth and gums. 14- ii! SHEDDING OF THE TEETH. Some Authors, as if fearful that the Dentists may not have sufficient employment, endea- vor to encourage inattention to the teeth; instead of acknow- ledging that diseases arise from external means, they impute its origin to internal causes, and thereby inculcate a theo- ry which bears the same rela- tion to our teeth, that the doc- trine of election does to our souls ; for if every thing go bypredestination, of whatcon- sequence is it to one or the o- ther, to soul or body, whether we give them a moment's at- tention or carelessly let them shift for themselves. The teeth which are intend- ed by nature to be permanent, having made their appearance, require the assiduous attenti- ETH. fearful )t have endea- ention ^know- sefrom mpute muses, I theo- e rela- le doc- to our ng go atcon- the o- hether it*s at- t them ntend- anent, trance, ttenti- 15 ^ on of the parent, until the fa- culties of the child are suffici- ently matured to be enabled to attendto the taskitself; the im- portance of attention to the teeth, should be inculcated with their earliest lessons, and an impression thereby made that will not be forgotten in manhood, and which will se- cure to themselves a sound, even set of teeth until with their body they decay in the grave. EXTRACTING OF THE TEETH. The extracting of teeth is considered by some as a sim- ple operation. To extract with the least possible injury, (for every extraction is an act of violence)it is indispensibly ne- cessary,' that the. operator g^hould be perfectly acquaint- Ml 'f' III ,1 ll i I* 'If ■J i u ' tfi k J.. 16 Slid '^'/"^'"^"^ «f tj^e Jdw and contiguous parts. A jedge often leads to serious in Junes : how is it possible /b"' those whoare ignorant of the existence of the large cavities of the upper jaw, toward which the roots ofsome of the grind, ers approach so nearly? to know how to avoid breaking open their thin floorings ^re? ternal walls? The quafkery of those who pretend to d?aw teeth With such sudden dJs patch as to give the Tati^nt no time for pain, and before he knows where he is, is too n^culous to deserve a'seriot notice. These evil consequen ces as well as those of a more serious natureeventuaUymSe S t '^' -dvocafes of jerKing, become nrosflvf^ correct practice.' "'"•''" Vii a 17 ly of the parts, A calknow- erious in-- ssible for nt of the cavities rd which ^e grind- ^rly, to creaking ?s or ex- ^kery of draw en dis* patient before > is too serious equen- t more Kmake tes of •Afj OCCASIONAL DEFECTS OF DIS- EASED TEETH. ^ It may appear strange to most persons, to hear it asserted, that any condition of the teeth tnay contribute to the pi^uc- lion of fatal diseases which occasion nearly one half of the deaths recorded in the bills of mortality. When disorders have become so common, w^e are compelled to suspect a cause of their production, even in oiu- pleasures and necessary enjoyments. It is, however, more rational to place its pre- valence to the account of irre- gularity and neglect. And I shall endeavor to ascertain, whether it may not be consi- dered as one of the miserable consequences of bad teeth, which admits of no excuse in a place where Dentists reside. P'i 18 It is neither climate nor con- stitution which first occasions bad teeth. It is surely in the power of parents to prevent this difficulty, where brushes, &c. &c. can be had for ahnost nothing; experience will teach the utility, habit will become natural, and parents will be amplyrcwarded for their trou- ble. A FEW REMARKS ON THE COM- POSITION OF THE TEETH. I have examined the several specimens of the human teeth, as the enamel and the bone, and roots, the teeth of adults and the shedding teeth of children, it may not be unin- teresting to notice the action ii of some of the articles of ut^ Materia Chemica on the teeth. Sulphuric acid, of the specific gra^^^ y L 8. 3. appears at first :^'i 19 lor con- ccasions y in the prevent Hushes, r almost ill teach become will be nv trou- IE COM- ETH. several a teeth, 5 bone, ' adults eth of 3 unin- actitn 5 of Uic 3 teeth, specific at first I to have no action ; in the course iof one hour small bubbles are E* erceived, the roots become lackened, and in twelve hours the enamelled part bursts, xracks and separates, accom- panied ^ /ith an evident forma- tion of selenite, by the action of tile acid on the lime which enters into the composition of the teeth. Nitric and muriatic acids of the specific gravity 1. 12 act instantly on the tooth, accom- I pained with an evolution of a i quantity of small air bubbles A from the whole of the surface ; about eight times their weight of these acids are sufficient for ^ the solution of the solidifying principles of the teeth. The mass left undissolved has nearly the original form of the tooth, is flexible, semi-transpa^ 20 rent and easily divided by the nail. The dilute acetous acid, distilled vinegar, has a very trifling action, but when con- centrated acts both on the phosphate and carbonate of hme. Boiling nitric acids act strongly on a tooth with the evolution of carbonic acid, and a considerable quantity of ozo- tic gas. The gelantine and so- lid substance are dissolved as the surfaces present them- selves ; but the operation be- ing stopped at any part of the process, the residuum is firm and hard, but reduced in size proportioned to the time the tooth has been acted upon. TRANSPLANTING. The transplanting of teeth trom one head to another, is an operation, the success of which m 3d hy the ous acid, s a very !ien con- on the )nate of icids act mth the ic:d,and rofojzo- 5 and ao- olved as ^ them- tion be- t of the is firm I in size me the pon. f teeth 3r, is an fwhich ^1 is very doubtful. Teeth whicli >have been drawn by mistake, do not always become firm, twhenreplacedinthejaw; ho\tion of Lirvives volun- inues a n after e body or suf- ulse be arently J heart ; Qtpow- motion, gently sans, to I s organ pericar- an ex- nVjrane* which covers the heart even to its basis. Its uses are to keep the heart from having any friction with the lungs, and to contain a fluid to lubricate or moisten its surface ; from the right ventricle or cavity of the heart, the irritability of which is excited into action by the circulating fluid, the blood is propelled through the lungs, which are situated on the right and left side of the heart, from which they difler on ap- pearing to be void of irritabi- lity. They are divided into two lobes, and these into more divisions, three on the right side and two on the left ; the trochal or wind pipe r'escends into the lungs, and forms in- numerable cells, which have a communication with each B 3 26 :!' M i I otlier, and give the M^hole the appearance of a honey comb or sponge. The blood, after passing through the lungs, ar- rives again at the heart, and from the left ventricle is ex- pelled into the aorta or great artery, which dividing into two branches, one upwards, and the other downwards, dis- tributes through the whole body, from the extremities of which it returns by various veins to the ascending and de- scending cava, and is trans- mitted again to the heart. The heart is the grand organ which actuates the vital functions, and to this purpose it is admi-* rably fitted by its own irrita- bility, but it is necessarily sup- ported in its action by thepow- erful influence of the nerves, which are the ultimate instru- an ^hole the jy comb :)d, after ings, ar- irt, and e is ex- )r great ig into pwards, rds, dis- whole lities of various and de- 5 trans- rt. The 1 which ictions, s admi- irrita- ily siip- lepow- lerves, instru- 27 mentsboth of motion and sen- sation, and have their origin in the brain. The diaphragm or midriff, is a large broad muscle, l^hich divides the thorax from file abdomen: in its natural state it is concave or vaulted to- wards the abdomen, and con- vex towards the thorax, and, like the latter, it is in constant action; at the time of inspira- tion, it approaches towards the plain. Besides being a muscle of inspiration, it assists in vomiting, and the expulsion of the faeces ; from the exer- tion of this muscle likewise proceed sighing, yawning, coughing and laughing, it is affected by spasms as in the hickups, &c. it is both a mus- cle of voluntary and involun- tary action ; we may observe u ^ .),; in this muscle strong charac- ters pf admirable contrivance. It separates pos terially into two slips, between which the des- cending aorta passes a little, a- bpve this, and towards the left side, in the most fleshy p'art of the midrift', there is a direct o- peningforthepassage oftheae- i^ophagus ; there is also on the right side a large triangular hole for the passage of the ascending cava, The aesopha- gus is composed both of lon- gitudinal and circular fibres, lut chieflv circular, much jfiQxe so tnan the intestines, which renders the passage of tj^e aliment o^ food easy. The stomach lies across the upper part of tbe abdomen, and is covered by the liver when dis- tended ; it presses on the spleen ; it nearly resembles in harac- v^ance. to two e des- ttle, a- he left )'art of rect o- theae- on the ngular Df the sopha- )f Ion- fibres, much istines, age of y.The upper and is len dis- )n the ibles in ■<.. >% 29 fitrure the pouch of a bag pipe, its upper side being concave, and the lower convex. Its lett end is the most capacious. Un the left side is the entrance from the gullet, on the right is the opeing called pilor as, uy which the chyle passes mto the intestines ; here is a cir- cular valve or sphincter mus- cle, which prevents a regur- gitation of the aliment. Ihe stomach has circular and lon- gitudinal fibres, and its inner membrane is covered with a strong visid mucus. The liver, the largest gland in the body, is situc. ^ •mraediately under the vaul. .^avity of the mid- riff, chietiy on the right side, and somewhat on the left, o- ver the stomach : exteriorly or anteriorly it is convex jinward- B 5 i/i^^ •O' 30 iy it is concave, very thick in Its superior part, and thin in Its inferior. The upper side adheres to the midriff, and it IS fixed to this and the ster- num by a broad ligament ; it IS also tied to the naval by a ligamentous band, which is the umbilical vein of the un- born infant, degenerated into a ligament; both these bands serve to suspend it while lying on the back, from bearing too much on the subjacent cava, otherwise it might press on this important returning ves- sel, stop the circulation, and put a period to life. The liver IS the viscus or bowel which performs the secrteion of the bile. The gall bladder is situated under the great lobe of the liver, a little to ^e right, in a I T»; 31 standing posture ; it lies for- wards and downwards j its bot- tom is raised by a fullness, & depressed by the emptying of the stomach. The use of the gall bladder is to serve as a re- ceptacle for the bile. The in- testines are destined to receive food from the stomach, and after exposing the useful pait of it to the lacteals, a set of extremely small vessels, to con- vey the remainder out of the body ; the intestinal canal is usually five times the length of the individual, it is curi- ously convoluted in the abdo- men, and is extremely irrita- ble. In the small intestines there are numerous plates to detain the food, and allow a larger surface for its absorpti- on J these are larger and far B 6 32 HI more numerous near the sto- mach, where the food is thin- ner, tlian they are towards the other extremity; at the en- trance of the ilium into the colon there are two very large valves w^hich prevent the re- gress of the faeces into the ili- um. The caecum and colon of the intestines towards the lower extremity of the sides, havingstrongermuscularcoatii than the smaller intestines, are furnished with three ligamen- tus bands running lengthwise on their outside, dividing their surfaces into three portions, nearly equal. Though appear- ing externally like ligaments, they are composed in a struc- tm^e of true muscular fibres ; the ligament like bands which in the caecum and colon are roUented into three portions, ^ \ sto- thin- Is the B en- 3 the large e re- he ili- colon s the sides, coatdr es, are imen- hwise ; their tions, )pear- iients, struc- hres ; ^vhich m are tions. 33 * are spread equally over the surface of the rectum or low- er extremity of the intestines, i they are furnished with mus- ' cular fibres both circular and longitudinal. The spleen or - milt is situated immediately ^ under the edge of the mid- riff; above the left kidney, and between the stomach and ribs, in figure it resembles a de- })ressed oval, near twice as long as broad, and almost twice I as broad as thick. The pan- crease or sweet bread is situ- ated transversely, under the stomach, its shape resembles a dog's tongue : the pancrea- tic juice resembles the saliva, but is less vicid or slimy, and contains a larger proportion of the salts of the blood, it is probably intended for the solution of. our aliment. The i1 34 kidnies are two oval bodies si- tuated in the loins, contigu- ous to the two last short ribs, the right under the liver, and the left under the spleen. Over the upper part of the abdomen is spread the omen- tum or caul, consisting of two broad, thin and transparent membranes joined together by a cellular texture, in the cells of which a quantity of fat is deposited, the uses of it are, to interpose between the pe- ritonaeum or lining, the intes- tines and the stomach, to keep all these parts, moist, warm, slippery, and to prevent their adhesion to theperitonaeum,a strong membrane which con- fines, as in an enclosure, the intestines and contents of the abdomen. • . 1 Another essential cavity witn rp ^^' odies si- ;ontigu- 3rt ribs, ^er, and een* t of the ^ omen- y of two isparent sther by the cells >f fat is f it are, the pe- le intes- to keep , warm, nt their iaeum,a ch con- Lire, the ts of the dtywith » 35 its dependent system, to the primary influence of which, all the other parts of the body are indebted for their action and energy, the Brain, is di- vided into two portions, name- ly, cerebum and cerebellum, the former situated in the up- per part of the skull, and the latter under it ; in the hind part of the brain is a soft pul- py substance, surrounded by two membranes, one called dura, and the other pia mat- ter ; it has also a third called a rachnoid from its fineness, as being similar to a spider's web. It contains some sinews, which are nothing more than large veins, or receptacles for bloody and four cavities called venti- cles. Moistened in a healthful state like other parts of the body, it has a variety of arte- i ri? t IV. r ■^likir m\ -JiH S6 rial branches from the heart, which diffuses through its sub- stance and on the membranes. These are white, firm and so- lid cords which arise from the brain and spinal marrow, which is only an elongation of the brain, and spread over every part of the body endowed with sensibility, by mnumerable fi- laments ; ten pair of nerves is- sue from the brain itself, and thirty from the spinal marrow; those that go to the organs of sense, are considerably larger than the rest, and are in part divested of their outer cover- ing, OF DIGESTION. The aliment being received into the mouth, the first ope- ration it undergoes is to be teeth and several muscles j heart, ts sub- ►ranes. ind so- )mthe which of the every id with ible fi- 'ves is- f, and arrow; fans of larger n part cover- ceived ^t ope- to be iscles f 37 this mastication is of greater moment than is generally ima- gined, and the good eftects ot it are further promoted from the firmness of the food, and by mixing with the aliment a quantity of saliva discharged from the glands of the mouth, and which is greatly condu- cive to digestion J durmg its continuance in the stomach it experiences the eftectsrof heat and muscular action from the coats of that organ, and the motion and warmth of the surrounding parts ; it thence passes out gradually by the right orifice of the stomach, and there meets with an ad- ditional quantity of bile from the gall bladder and liver, be- sides the pancreatic juice or that of the sweet bread, of a nature similar to the saliva, 38 lis JW Hi'! I but rather more thick, and the fluids separated by the intes- tines; it then receives the acti- on of the bowels. A fluid is now produced called chyle, wdiich is separated from the grosser materials, and taken up by a set of extremely small absorbent vessels called lac- teals, these have their origin in the thinner coat of the intes- tines, and passing thence, dis- charge themselves into a duct, named the receptacle of the chyle, whence this fluid pro- ceeds along the thoracic duct, which terminates in the left subclavian vein. In the pas- sage to the receptacle, there is a number of glands, which separate a watery liquid, for the purpose of givingthe chyle a thinner consistence. To pre- vent the chyle from failing iiid is chyle, n the taken ' small i lac- origin intes- e, dis- . duct, 3f the d pro- duct, e left e pas- there which i, for chyle b nre- i. ailing 39 back in its progress through the lacteals, the construction of these vessels is admirably contrived : they are furnished with a number of valves which open onlv forwards, and are shut by *any fluid pressing backwards. From the sub- clavian \ ein, the chyle is pour- ed into the blood, and thence immediately thrown into the right auricle and ventricle ot the hear+, from which now mixed with the blood, it pas- ses into the lungs ; it urider- goes in that organ a consider- able change from the act of respiration. From the lungs it proceeds through the pul- monary vein to the left auri- cle of the heart, and then in- to the left ventricle, whence at last, endowed with all the qualities 01 uiouu, it pa^o^^ ^^ ir ji (I 40 to the aanta, and is diffused universally through the frame, the wants of which it is fitted to supply, by the addition of nourishing particles. AVOID SOLITUDE. Grief is the most destruc- tive of all the passions. Its ef- fects are permanent ; and when it sinks deep into the mind, it generally proves fatal. Anger and fear, being of a more vio- lent nature, seldom last long; but grief often changes into a settled melan choly which preys upon the spirits, and wastes the constitution. This passion ought not to be indulged. It may generally be conquered at the beginning, but when it has gained strength, all at- temt^ts to remove it are vain. No person can prevent misfor- 41 tunes in life, but it shows true greatness of mind to bear them with sincerity. Many persons make a merit of indulgmg grief, and when misfortunes happen, they obstinately re- fuse all consolation, till the mind, overwhelmed with me- lancholy, sinks under the load. Such conduct is not only de- structive to health, but incon- sistent with reason, religion & common sense. Change of ideas is as necessary for health as changes of posture -, when the mind dwells long upon one subject, especiall}^ of a disa- greeable nature, it hurts the whole functions of the body. Hence grief indulged, spoils the digestion and destroys the appetite, by which means the spirits are depressed, the nerves relaxed, the bowels inflated I •f 4} 42 with wind, and the humours for want of fresh supplies of chyle viciated. Thus many an excellent con- stitution has been ruined by a family misfortune, or any thing that occasions excessive grief. It is utterly impossible, that any person of a dejected mind should enjoy health. Life indeed may be dragged out for afew years, but whoever would live to a good old age, must be good humored and cheerful. This indeed, is not altogether in our power, vet our temper of mind, as well as our actions, depend greatly upon ourselves. We can either associate with cheerful or melancholy com- pany, mingle in the amuse- ments and offices in life, or sit still J^Tid brooH ov^** oi^r ^nlfi^ mities as we choose ; these, & 43 many such things are certain- ly in our power, and from these the mind generally takes its cast. The variety of scenes which present themselves to the senses, were certainly de- siened to prevent our attenti- on from being too long tixed upon any one object. Nature abounds with variety, and the mind, unless fixed down by habit, delights in contempla- ting new objects. This at once points out the method ot re- lieving the mind in distress. Turn the attention frequently to new objects, examine them for some time ; when the mmd beginstorecoil,shiftthe scene. By this means, a constant suc- cession of new ideas may be kept tip, till the disagre^ble ones entirely disappear. Thus n: '6' U I. vt. --' 44 y i' livj , — r art or science, reading or wri- ting, or such subjects as deep- ly engage the attention, wili sooner expel grief than the most sprightly amusements. It has already been observ- ed, that the body cannot be healthy, unless it be exercised, neither can the mind. Indo- lence nourishes grief. When the mind has nothing else to think on but calamities, no wonder it dwells there. Few people who pursue business with attention are hurt by grief. Instead therefore, of ab- . stracting ourselves from the world or business when mis- fortunes happen, we ought to engage in it with more than usual attention, to discharge with double diligence, the functions of our station, and to mix with friends of a cheer- or wri- ,s deep- •n, will an the lents. observ- not be Tcised, Indo- When else to ies, no Few usiness urt by , ofab- >m the m mis- ight to e than charge e, the 45 ful and social temper. Inno- cent amusements are by no means to be neglected ; these by leading the mind insensibly to the contemplation of agree- able objects, help to dispel the gloom which misfortunes cast over it. They make time seem less tedious, and have many o* ther happy effects. Some per- sons, when overwhelmed with grief, betake themselves to drinking ; this is making the cure worse than the disease. It seldom fails to end in the ruin of fortune, character and constitutiQii, s « 5 ^f i. ji ■%. a. cheer- 46 TECHNICAL PHRASES. Acute, any disease which is violent. Adult, of mature age. Abdomen, the belly. Aphthae, small whitish ulcers appearing in the moiith. Aesophagus, the gullj^t. Bile or Gall, a fluid which is secreted by the liver into the gall bladder, and from thence pass into the intes- tines in urder to promote digestion. ^ ^ ^ Cirebellum, the braifi^ of ani- mals. Cava, a large vein which con- veys the refluent blood to the heart. Caries, rottenness of the bone. Circulation, the motion of the blood. -> .,: 47 Comatose, sleepy. Cutis, thre skin. Chronic, a disease in opposi- tion to accute. Debility, weakness. Delirium, a disorder of the mental faculties. Diaphragm, a membrane sepa- ratingthe cavity of the chest from that of the belly. Exacerbation, the increase of any disease. Foeces, excrements or set- tlings after distillation. Faetid, emitting an offensive smell. Flatulent, producing wind. Fungus, proud flesh. Faetus, a child before birth. Gangrene, mortification. Ganglia, venerial excrescen- ces. Hypochondriacism, low spi- C o •i.. -1 48 Haeomrhoids, the piles. Hemorhage, discharge of blood. Ichor, thin bad matter. Ligature, bandage. Mucus, the matter discharged from the nose, lungs, &c. Nausea, an inclination to vo- mit. Phlogiston, unwholesome air. Pus, bad matter. Pericardium, membrane con- taining the heart. Perspiration, the matter dis- charged from the pores of the skin. Respiration, the act of breath- ing. Regimen, regulation of diet. Saliva, spittle. Spine, the back bone. Thorax, the breast. Tabes, a species of consump- v-a.'W&«« s. je of r. charged :s, &c. I to vo- 49 Ulcer, an ill conditioned sore. Urethra, the canal which con- veys the urine from theblad- der. Vertigo, giddiness. me air. le con- :er dis- ores of breath- f diet. A tsump- C 3 50 & SELF KNOWLEDGE, That most important of all sciences, is to be studied in all situations through life. . It is an accomplishment very much neglected. The calls of Na- ture ought never to be post- poned. Observe with diligence which way nature points, and endeavor to assist her opera- tions. Our bodies are so fra- med as to have a constant ten^ dency to expel or throw off whatever is injurious : sleep, as well as diet, ought to be regular. Too much sleep ren- ders the mind dull, the body gross, and not enough weak- ens the nerves, exhausts the spirits, and occasions diseases. The sexes are much the same, allowing for their different dispositions, age, and consti=^ tutions. One great source of 51 E, It of all ed in all . . It is y much of Na- e post- ligence itSj and opera- so fra- nt ten- )w off sleep, to be jp ren- ! body weak- :s the eases, same, ferent nncfi- 'ce of the diseases of Children, is the unhealthiness of Parents ; it would be as reasonable to ex- pect a rich crop from a barren soil, as that strong, healthy children should be born of pa- rents whose constitutions have been worn out v/ith intempe- rance and disease. Few things prove more destructive to health than confined or un- wholesome air. Many people are not aware of the danger arising from it. Mankind ge- nerally pay some attention to what they eat or drink, but seldom regard w^hat goes into the lungs. The passions have great influence both in the cause and cure of diseases. The temper of mind ought to be carefully attended to in diseases. In vain do we apply C 4 Ill 52 medicines to the body to re- move maladies which proceed from the mind. When it is af- fected, the best medicine is to soothe the passions, to divert the mind from anxious thought ^d keep it as easy and cheer- ful as possible. A FEW OBSERVATIONS, Will, I hope, make a suitable and abiding impression upon your minds, teach you the fa- ding nature where neglect is indulged, and the little depen- dence which is to be placed upon quackery, which becomes every day more alarming, and threatens the public with the most fatal effects by which they are actuated. I w rite warmly on the subject, for it is a subject in which I thiiik the honor and to re. oceed is af- eisto divert ought Aeer- h itable upon he fa- ect is epen- laced *omes f, and h the I they ilyon ect in ' and 53 happiness of Society concern^ ed. Pursue the system which is adopted, and convince your friends of their mistaken ideas, that they may consider their nature and effects, and re- nounce them. We do not al- ways consider the value of a blessing until too late : this is strictly verified in almost eve- family through the country. It is the ignorance and credu- Hty of the multitude, with re- card to the management of the teeth, which renders them such an easy prey to quacke- ry. 1, 2, 3, and so on, are pre- scribed for curing maladies of the teeth and gums. Some for whitening, the effects at first surpassed their most sanguine expectations. Many have the mortifying conviction, that .0^' ■ 54 neither art nor time can ever remove the filty discoloration which neglect or improper ad- vice has accomplished. A thread passed between the teeth after every meal, will save more teeth from decay, than all the brushes and pow- ders that can be used where the waxed thread is neglect- ed. It is advisable, whenever the teeth are discolored on a- ny part or spec't between, to have it removed with instru- nr'^nts; let it ofFend whom it may, for the longer they re- main in a foul state, its bad ef- fects are progressing in a grea- ter or lesser degree. The un- believers will please to dis- pense with the absurdity of a custom which has pernicious effects on society, for no other reason than a compliance with 55 fashion. Such caistoms are to be treated in a manner which the laws of humanity forbid. Any Advice given Gratis. Prices for the following are as circumstancespresentthem- selves : A full set of Teeth, with gold springs, not to exceed one hundred dollars. A single tooth not to exceed ten dollars. Evening the teeth not to ex- ceed one dollar. Separating of the teeth not to exceed one dollar. For mending a tooth with foil one dollar, gold, &c. Teeth made white and polish- ed, price depends on the state and number of the teeth ; from one to five dol- C 6 56 lars — not the least pain un- der the operation. Tooth paste, &c. &c. for keep- ing the breath, teeth and gums agreeable. Deranged and ulcer teeth ex- tracted gratis, with as great care and ease as any opera- tor. My first wish is a continu- ance of the public's patron- age — my highest ambition to deserve it. NEVER TOO LATE TO DO GOOD. It is certain, that life when to all appearance lost, may of- ten, by due care, be restored. Accidents frequently prove fa- tal, merely because proper means are not u sed to coun- teract their effects. No per- son ou^ht to be looked upon un- 57 as killed by an/ accident, un- less where the structure ot the heart, brain, or some organ necessary to life is evidently destroyed. The action of these organs may be so far impair- ed, as even to be for some time imperceptible, when lite is by, no means gone. In this case, however, if the fluids be suf- fered to grow cold, It will be impossible to put them again in motion, even though the soHdsshouldrecovertheirpow- er of acting. Thus, when the motion of the lungs has been stopt by unwholesome vapour, the action of the heart by a stroke on the breast, or the functions of the bram by a blow on the head, if the per- son be suffered to grow cold, he will in all probability con- tinue so ; but if the body be S8 kept warm, as soon as the in- jured part has recovered its power of acting, the fluids wJl again begin to move, and ail the vital functions will be restored. It is particularly ne- cessary to avoid all violent exercise, and should carefully guard against catching cold. 59 he in" 3d its fluids ^9 and ill be lyne- iolent efully ^old. Exercise thy Judgment. Among the various tribes of animals, I cannot find any ir- regularity of the teeth, or dis- cover any instances of decayed teeth, except by fracture. Na- ture has left it to rational be- ings, to judge for themselves, and the person would be blind and utterly void of under- standing, who could not trace through the destruction of the tfteth. It maltPTft not what wi> 60 eat or drink provided the teeth be cleansed directly after. It is what lodges between the teeth that operats their ruin. A sing-le instance will infallibly correct the error, and shew the absurdity of neglecting them. Dentistry with some, is hardly considered as a popu- lar science : but^ surely^ no sufficient reason can be assign- ed for this omission. It must soon, however^ appear, upon a more strict examination, that no science better deserves the attention, or is more capable of being rendered generally useful. There are various im- proper practices, which bring on decay of the teeth, and con- sequent tooth-ache ; such as raising heavy weights with them, cracking nuts, using mettal tooth-picks, &c. &c. I 61 That kind of tooth-ache which happens in sound teeth, is of- ten agf^ravated by extraction. When a tooth is painful, and does not appear to be deffective we have many circumstances to take into consideration : we should learn whether it arises from sympathy, from cold, from tartar, or other causes. OF ELECTRICITY. To describe all the maladies in which Electricity is servica- ble, would extend this far be- yond the limits allotted :— in short, it is proper in all infla- mations of the eyes, throat, &c. likewise in asthma sciatic pains, coughs, head-ache, strains, rheumatisms, apoplexy, epi- lepsy, bruses, burns, scalds, and any empoverished state of the blood, jaundice, gout, 62 r dropsy, cancers, ulcers, or e- ruptions on any part of the body, (Sfc. the bites of poison- ous animals, that most obsti- nate malady, wiU sooner yield to electricity than all the boast- ed remedies of the shops. A similar treatment to wounds, &c. it stimulates the parts in such a condition as is the most favorable to nature's efforts. As human life has many diseases which require medicines, are we not right in selecting* the most agreeable and palatable. No discovery can be of gene- ral utility, while the practice of it is neglected. Electricity, Chemistry, Anatomy, and Ma- teria Medica, are all branches of Natural History, and are fraught with such amusement and utih'ty that the person who entirely neglects them, has but 63 a sorry claim either to taste or learning. Convinced of the utility, I shall spare no pains; determined that neither inte- rest nor prejudice shall ever deter me from exerting my best endeavors to render Elec- tricity more generally benefi- cial to mankind. An ounce of pevcntitive is worth a pound of cure. DELAYS ARE DANGEROUS. Make the practice of this work fashionable, and all ob- jections will soon vanish. It is fdsluon alone that has led the multitude since the begining of the world and will lead them to the end. We are a misjudg- ing people, and ou i,ht not to sacrifice our blessings and en- iovments to the contrast of o- pinions. We must, therefore 64 call upon the more enlighten- ed part of mankind to set a pattern for the rest. Their ex- ample, though it may for some time meet with opposition, will at length prevail. Time, which effaces every occasional im- pression, I find gradually dispelling, which gives me pleasing anticipations of fu- ture felicity. It is the task of friendship to write on facts, and an insult upon our un- derstanding to neglect them. Whenever the public are con- vinced of the justice of my conduct, and become converts to my advice, I shall be happy to hear it. That we may have wisdom to keep from fall- ing, and conduct us safely through this state of trial, to the regions of immortal bliss ! ir fh ten- set a ir ex- some I, will vhich im- lually me f fu- isk of facts, r un- hem, con- f my verts appy may 1 fall, afely 1, to )Iiss ! 65 is the fervent prayer of your sincere friend and obedient servant. Hettt 9peat Ipatmis*