S72 O if. TttK CIASSES OF T H E 



,i;y-{i IJ^yji)g,beeii warned by the author that we are not to-con- 



sider thi;^ series as a scale of perfectioa iii structure, nothing 



ought to be saidpn the^subjeetr- Ittia the order of affinity 



; which, is held forth as the merit of this, short hst; and yetJiere 



we have the Seal placed nej;t to, th&.iKangaroo, the. Hare 



^^^next to |the Sloth, the Pr«ilAp'%«,cAMs allied to the Ele- 



. p|ii^nt, the Ox to the Whalej and thJ§c.amn)aI;again to the 



„ Birds of Prey, Ifl[_i§hqrt, the diserepancj^^are so great and 



§0 /requent, ,tha^ ^>s[e i\ecessarily ( pj^tiser'-.b^ore; we .^an 



admit that such. Cja;g hB:Ja^_,s^^^^Q(,,mim»hz. distribute^ 



.according to their axgamxqtif)t)^ci j^e,;thi§ bftWesseKi^B ge- 



joeral ^s it m^y, , there js^oni^; -thii^very c^rtain^rthit the 



,Ce?ace« lead us, by : a very jdis$inc|, g-pd natural tfansition 



from, \he...Mammaliq.,^ j,Fii?h^jr;a94Mftat if ^Jbeir iflrarpti 



: bloQid, dieis lungs,]th§irjViviparous,,g^ej-gtig|v#Jj4.3WaPiiM 



prove their ,aflSiiil;y tp.'th? fQiweK gfo,i[j;Pj..ctbejr,.sk^etpp,;fnd 



e3?ternal coyerieg,. .the in3LperfectiQa,9fvti}giFi5Jl|i^tQEy and 



.^viditory organs^,all.§how tlitatt%j ^pprpacJv.He£ff, jjo fishes. 



The vivipai'Ous ^harks, .si^eh;^^(Sg/^i||^^f^ 



JBas^king Shark, witlj tli^ ^^ n}Qjg:;p^^;^feG;itly. p^gaflked 



thaujthat of other fishes, ,and,,thei^b,9]^y des,ti|}4te;0f.^<^ales, 



the^gg-rticulgiij, disposition^ Qf djeir^^r^,.a|yij,,th^i):^,clos§ 



brancliiaB, aUJndica^^at,\Y|^|;pl^g,j^£L3re tq^pt^ij.^9^^ 



jbe fishes. ^ With the gxpeptloji QffS!!i^,'^:^b^^I's, fisJaeS; are 



Qviparous animals, whose eggs ture^f^cundated by the male 



shedding his milt over thenx., .They, breathe by branehiae^ 



and the blppd,. after respiration, passes into an arterial 



tmpk situated under the spine,andjwhich performing the 



futi,ctio;is of the^l^t ventricle disperses, it througljouf th^ 



bQdy,Kfrom-\yh;cb.Jt again xeturnp, by meains of the ^yejng^ 



Nothing is jis yet known of tlieir natural arrangement; 



but it is allowed by every naturalist that they are intir 



mately connected with the Amphibia or Batraciens ot 



