IIIK SlTfKSSlON ol-' DKI'OSIIS. (53 



and nia\cl with Sa\ica\a ami oIIht slii'lls;* while, in a 

 diipressjoii ahoNc ihis, at, a h('i,L;hl nf "("lO iVct, sea-shells 

 (leeur ill clay and saml, and there is a distinct lieach at 

 a III lilt (liri Id (iiTi t'eet.-f" l'!\en mi the t(i|i nf the Miiimtain, 

 at a lieiuht nj' alioiit 7*'i> I'eet, lar^e tia\(dled Laureiitiaii 

 houlders (iceiir, lyiiin' jiinse and wiihtiiii any lididdei -(day. 

 On the liiwel' St. Lawrence, li(d(iW <^>Uidicc, the series (if 

 lerraces is trciH'ially Ncry distinctly marked, and lor the 

 most |iart the hiwer (Hies are cut into the lionlder and 

 lA'da (days, which are here d' ureal thickness. I e-jve 

 heldW Vdue'li nieasiireiiieiits nf the series as they (iccnr at 

 Les l^li(iiilemciits, Little Mai hay and .Mnrray hay, where 

 they are \'ery well disiilayeij. I may remark in general, 

 with resiiect l<i these terraces, t hat the |ihysical ciiiiditiiins 

 at the lime \vlien they were cut must liaNc heeii much 

 the same with tlmse which exist at present, the ajiiiear- 

 aiices ]ireseiitc(l lieiiiL;; \ery similar tn tluise which wmild 

 (icciir were the ]irescnl heach In he elexaled. 



Conijiarisons lit' thenlderand iiiddern lenaces may he 

 made at many ]ilaees (Ui the Idwer St. Lawrence. Al 



Lillle Ah'lis, where I lia\t' had u' 1 diiiidrlunit ies ol' 



sludyin<4' their a[i[)earances, the cdasi is fringed with a 

 hroad l)e]t of houlders, whdlly coNcred at hi^h tide, hni 

 i,'.\p()SO(l at IdW tide, and dcciipyinu' in many places a 

 hreuilth of thirty to .'it'tv paces, within which the houhk'vs 

 are packed very cioselv. Thev \arv in si/e from nine to 

 ten feet in diiuncter downward, and consist principally of 

 <irthocla.se ^i^iiei.s.s, Lahradorite rock and other crystalline 

 rucks from the Laurentiaii of the north slmre, here ahout 

 thirty-tive miles distant at the nearest point. AV^ith 



* The beaoli at Cote des Xeiges is tluit described liy .'>if C". Lyell 

 in his travels in N. America. 



+ Dr. F. D. Adams and Harun de (leer. 



