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Tous les autres exemplaires originaux sont filmis en conrmenpant par la premiAre page qui comporte une empreinte d'impression ou d'illustration et on terminant par la derni£>re page qui comporte une telle empreinte. Un des symboles suivants apparattra sur la dernidre image de cheque microfiche, selon le cas: le symbole — ^ signifie "A SHIVRE", le symbols V signifie "FIN ". Les cartes, planches, tableaux, etc., peuvent Stre fiim^s d des taux de reduction diff^rents. Lorsque le document est trop grand pour dtre reproduit en un seul cliche, il est filmd d partir de Tangle sup6rieur gauche, de gauche d droite, et de haut en bas. en prenant le nombre d'images nicessaire. Les diagrammes suivants illustrent la mithode. 1 2 3 1 2 3 4 5 6 ) SABLE ISLAND, t Its prolKiblc Orii^iti and Sub- m('rLr(M"i("(\ BY SIMON D. MAGDONALD. F. G. S { luad ihtorc llic liistilittc oj \a/ina/ Siiciicr, fa i: nary ii, iSS(\) I PROPERTY OF LIBRARY GEOLOGICAL SURVEY O^ CANADA , 601 Booth St^ 'Ottawa LENT TO /.V'^..,..?../..../vr:l; PLEASE RETURN DATE v.. 2. / L /-/ '^'Cy^r.AL \ r^ 'I I l-J>. (7 .tV> o.v^ .~-y / .^ Airr. III.— SAiiLK Island, No. 8. — Its Prohahle Ouirax and SuiiMEHGENCP:.— Bv SiMON I). Macdonald, F. G. S. {Head Jmuary 11, ISSC.) yir. President (ind Gentlemen, — I make mo ap()]oL;y foi- oecnpying your uttL'Tition in discussiiii;' for the tliini tiiiio Sable Island, and its attendant phenomena. Independent of the call this Island makes to a rieli and variiMJ Held for scientirie research, thei'e comes a deeper voice across the mad tumult of its breakers, and amid the storms that appear to vent their fury in its vicinity, asking in the interests of humanity tor a wider kncnvledge of th(! causes wliich have associated such iiorrors with its very name. Ill addition to this, the proximity of tliis fatal Island to our shore, — tlie unfavorable reputation it lias alrer.dy given to our coast and its approaches, and the certainty of its complete sub- mergence at no distant day, with the probabilitv of its becoming a still greater dread to the mariner, — makes this Island a proper subject of investigation for this Society. It comes within its province to observe and record for the benefit of not only the present but for the many future investi- gators, who will doubtless value everything of information left by us, and scan with eager glance in coming days the varied resume of facts we have collected, or left for them tu theorize and debate upon. In my Hist paper I brought to your notice the Island gener- ally, its history, natural features, wrecks, etc.; and also showed that from its geographical position situated at the interlacing of three of the most remarkable currents which encircle it with those swift eddies so fraught with destruction, whilst the atmosph(.'ric influences borne to it on the bosom of those dissimilar and oppos- ing currents, surround it with conditions not found elsewhere, and afford for meteorological purposes a point unsurpassed in the North Atlantic. • • ' » ••, . • • • , • • • • • • . > ; • • , • I • > • I • t I 9 • • • • •2f;(; i-iAlitK ISLANt) — MACDONAf-I*. III my second paper I called your utteiitioii to tl\(.' vicisMitilile- tliis island had underi^'one iVoni Htorni and curivnt wliicli, at-cord- iivj; to Admiralty surveys, Ijad within (SO yearn reduced its ai-eit I'rom 40 miles in len!L,^th and 2| miles in breadth to 22 miles in ieno'th and less than 1 mile in breadth, and itn heii^ht from 200 ft-et to - at tlie eastern extreniitv of this remarkable forma- fcion we have what is known as the great bank, 240 miles E. and \V., and 21)4 miles N. and S., an area equal to the whole islatid of Newfoundland. West from this we have the Queio bank, 120 j'uiles in lenath ; north of this again is the Canso bank, 00 miles in length ; west from Quero, 12 miles distant, we have the Sable Island bank, 200 miles in length and 90 miles in breadth. On this bank we have a narrow thread-like elevation above the sur- face which is Sable Island proper. North of this, separated by a narrow channel, is wdiat is known as the middle ground, 35 miles in length. West from this is Sambro, 12 miles in length : ^l/e«:I^lWk).bank 32 miles E. and W. ; then the Rose way bank, •• *•• • • •» • *••• • * t « ,• • • •• • ' • • f • • • • • • • • • • • • • • •-• • , • • • • • • * • ••• • •• • • • • • •• • •» ,• ••o • •• ••• •• • ••• •••'<•*••«• ---- ••*- WWi V,' SAIil-K ISLAND - .MA('li(»N.\M». 207 •I Hi miles loiin-; westward ai;uia \V() have the (Jreat Ooori^^e's bank, \vitli shoals reachin^^ tlie suii'aer ; a little fnither westward ue roach the shoals of Nantucket , the \vl\(/ie foniiina- an imiiienso deposit, following- the ciirvatioii or the coast. We will now turn from i^eojoi^ical formation to the course of tliose j^reat currents which coast of Florida (^-ii tht^ one side and Cul)a and th( Bahamas on the othei-. follows the trend of the American coast northward until approaching' the shoals of Nantucket where it swerves to tlu; N. K., passing- south of Sahle Island to the tail of the i^-reat hank of Newfoutidland, and tlien stietehini;- over to Euro})e in a dr.e east diix'ction. In oppo.*;iti(jn to this wc have the cold icedaden current of the "north, one porti(.n of which after leavino- the Aictic ocean, passes southward aloii!^ the eastern coast of (Jreeidand wIkmc, heini,' joined by another branch comiuo- from Batfin's liay and Davis Strait, it passes along' the coasts of Labrador and Newfoundland to the great banks, ^vhere it is met by the northern edge of the Gulf Stream. At this p(/int a division of the polar current takes plac(\ One portion, from its gi-eater density, sinks below tlu" vrarm current of the Gulf Stream, and continut.'s its course southward as a sub- marine current. The other portion of tlie polar current, where it iir.pinges on the Gulf Stream at the Great baidv, becomes detii'cted t(Whe westw^ard partially by contact with the Great bank, and in its course its nortliern edo-(; sweeps around Gai)e Race int(j St. Marys and tlie other bays north until losing its momentmn it falls back and joins the main body of the current. This portion, sweeping around and into those bays, is commoidy culled the indraught by mariners, and to it b'eing accelerated by certain storms may be attributed the loss of the Cedar Grove at Canso and the Groniwell boats and the Hanoverian at Cape Race. The southern edge interlaces tlie Gulf StrerMu and carries west- ern bound vessels at such a rate as frequently leads mariners to 2().s SAHLK rSLAND — MACDONAf.D. miscalciilattj tlieir position with ivfercncu to this Ishvud, to whiclv fact is attiil)\it,il)l(' many of the wrecks. Capt, l^aihy, a (oi'ni(;r Superintendent (>f the Tshmd, in «. letter to IMnnt's coast pilot, witli regard to the strenijth of tliis polaj" cunent, says : " The most of tlie wreck's occurrinj^^ here aiise from error in loni-ituih'. 1 have known vessels from Europe tluit had not ma(h3 an error of half a (h'^-ret! in their lonuituch^ nntil tl»evcame to the hanks of Newfoundland, and from there in moderate weather and li^ht winds have matle enors fiom ♦)() to lOO nines. It is dilHcidt to undei-stand how that tlie connnandcrs of vessels makino- voyages to and from this country for so many years, sliould he apparently so ignorant of the strength of these- currents, unh^ss as it woidd seem they have periods of compara- tive (juiesccnce and activity. Then ai,^ain we have a third cnrrc.'nt, a portion of the polar current, which, becoming- detached at the southern end of Labra- dor and sweepiuf,^ tln'ou^h the Strait of Belle Isle, is joined by the vast flow of the St. Lawrence, and f(n-ms what is known as tlie Gulf of St. Lawrence current. This combined cunent skirts the east si<• I ' SAinj: iST.AXf)-— MA(T)OXAM>. 2(1!) y I 1 ' Onpt. Sc-oivsl.v. vvl„) .v(oinM,itrn.| tlir r,M,t„l' the oivat -lacior of SpitzLer-^ron, coni.t.Mi at on.; tim,' upwards of oOO ior'l.cr.rs Martin- ont on tluMr cnrse soutlnvanl. many of wl.icl. w.-re iadon witli tlionsan.ls of tons of san.l, iimd and o-,av,.I Oapt. \Vill>;..s, „f tho TTnit.>d Statos oxplorln- rxp..diiion and.'d upon an npturn.Ml uvl..,.., supposin^r it to lu' an island' ^'pon It lie f..un mu.l and .se.hmentary n^atter scooped from the sea hottom hy upturn.-.l iceboro-s.is to he a.hhnl the effect of hm.l ice, as ohserv.^l l>y Kane and others, where the shores of the Arctic in a similar n.anner to ^•roun.l ice ioitns in more than a hun.h-e.l feet of wat.^r, raisin- from the bottom an enoi-mous amonr»t of material. On the breakino- up of tlie ice those floes are cairie.l off' by th.,' current «outiiwar.l to be dischar<,red at the -reat diUiipini,. o.,oun.ls of Newfoundland. Commander White, of the U. S. Navy, in l>is Arctic voya<.-es also relates seein^ir the birth of an iceberc. wliich cracker! from the ojacier with a loud report, an.l after a sunnncMsault in 180 fathoms of water app.-are.l with an .-normous cliff of tin; t'oicf tluit cirat-'il tli'' Ljitai iJfuik, ilicro must have been a tinit; wlu'ii this IJunk )in dumpinu' of material would take ]>laee at the western extremity j'.s well as. alouLf the whole line; of inteilacin^ eui'rents. This opinion is sti'eji^thened hy the fact of the walrus havin;^ onc(! resoi'ted to this lslan- out thi^ ico- dangers of the coast, we find the follow inni- ; "In July, 1>S:>(), H. M. bri<« jmcket b]\pi-es.s fell in with two islands of ice on Sable Island bardv, lat. +S.O.S, loni^. 20.17, in 4.> fathoms of wateT, estimated hei,q;ht 150 and ISO fe(>t." J woi.id next call your attention to the wouderful siniiiarity of those Banks and their limited { mount of submero'cnce, which. suL;;Lfests that many of them, if not ill, have l>een elevated aliove the surface at no distant period in the past. We will consider the most interestinf' ones. Bv GflancinLf at this chait of relative submer.\ feet. At Quero bank, in lat, 44, long, 57, is a long narrow sul)- merged I'idge 40 miles in length, which in form, and direction is.. an exact counterpart of Sable Island. Next is the Sable Island Bank, 200 miles by OO, with a thin line of elevation, already alluded to, of 80 feet above the sur- face. The next is one of great interest, viz., George's shoals, situated; ^t George's bank, otf the New England coast,. T ( HAlU,i: 1S|,AN|) — MA('I»(»NAM>. 271 (^apt. Hair, of tl... M. S. Xavy, win, snvvoy^.] tl.is llank repoft(Ml "Tl.ut M... hrrakris ucn- s.,cl» that unlass th. uvatl.rr NVMs iHTfrctly mil,, it Nvasi,„|u)s,sil.I..to^roani.,.i- tlir shoals with 3'OHts nn account .,f th.- heavy sra.. Nor was it cousMtT.-.l sal. to attrh.pt ,t with the vcss.-I, r.„- ln.si,j,.s th- -lan-.Tof strikin-. on a -an.l l.ar the vessel wouM he h'ahle t., h<. lille.l with th'e hreake.s. Ai.-; ha.l M.,t thcNea h.HM. po.rectlvsi.i.mthai..! at 'ii^h wat.M-, he wo„l depredations of rats, anet at Montreal and gave Sable Island such an elevation that at this later period after its beino- for aijes exv ■■■■'' to the ravages of the waves of the broad Atlantic so much is yet visible, would be (juite ade- quate to uplift the whole embankment and form a sand continent equal in extent to the combined area of Nova Scotia and New- foundland. At the opening of this, or what is known as the modern period, we have entered upon another downward movement, a gradual subsidence being now in progress over the whole northern part of this continent, of which there is ample proof. By observations at Nantucket and other points along the eastern seaboard, the subsidence has been 30 feet. The inun- dations that have of late so per[)lcxed the railway people and farmers along the New Jersey coast attest to this change of level. In our own province we have the evidence given by the submerged forest at Bay Verte and other places in the Bay of Fiindy ; also the ditliculties of keeping up the dykes at Grand Pre, owing to, as the farmers sav, the tides rising higher than former! >•, and the fact of hundreds of acres of giass lands being given up to the sea from the same cause, no later than last winter at Horton. t •'^ •V> •f SAKLE rSLAND — MACDONAI.n. 277 .-% I 'V. A A few months ao-o, in conipnny with Mi\ John Woodworth, of Grand Pre, I travei-sed the shelvin-r l)eaeh off Long Island, which is l)arcd at low water for 'j of a mile. From the channel to the shore we traced stmnps and roots of forest trees, some of w>" h would be covered at high water to a depth of 45 feet. Now, startling as this may appear to many, it is strictly in accordance with the geohigical changes that have taken place in all pa ;t ages. This rising and falling of the bosom of mother earth tells of life within. Sometimes she heaves a sigh and w.^ leeord an eartluiuake And when those movements cease atid she assumes the condition of a dead planet, as the moon is thought to be, we, her children, will also cease to live. But I di 111 LSl.S, (luvinLT a siiii;l'j ^jiIl', an •avvw ( (|Uiil to *> miles loiii;- iiiul 40 fuot wi'irareil tlie removal of tlie main .station, wliicli was tlien located at a d'st.-ince of M niile.s l)eK)\v. In 1S20 tlii^ station was' ai;aiii moveil 4 miles t'urtlnT t ist, the sea jiavinL;' encroached upon it. In iN.So there heini;' hut \ a mile ))etween it and the sea, it was ai^ain moved 4 miies fur- ther ea.stwai'd. Once more the .sea advance