. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. [lich latter are mps of beetles uping cneniie* ;, to tliat birdR •ed becH, would re once func- i the creatures thought, their f comparative imentary mu»- )r teeth found said that ani- ie« where they latrated within animals intro- ultiplied as to t, if we assume >f species have id. e former ezist- gh all the in- >t been found, the nature of ireserved; and rom mud that Dne wi
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. [lich latter are mps of beetles uping cneniie* ;, to tliat birdR •ed becH, would re once func- i the creatures thought, their f comparative imentary mu»- )r teeth found said that ani- ie« where they latrated within animals intro- ultiplied as to t, if we assume >f species have id. e former ezist- gh all the in- >t been found, the nature of ireserved; and rom mud that Dne with hard while if these ould, owing to itamorphosed), earliest forms 2rved at all, be in consequence ve undergone. ! in the earth's ) it is explored, organic evolu- oups constitut- nks. als and plants GENERAL DIOLOOY. 4T now peopling the earth were entirely different from those that llouriHhed ii» the past, the objections U» the doctrine of descent would be greatly «mgthened; but when it is found that there is in some cases :i scarcely broken succession of forms, great force is added to the argument* by which we are led to infer tho connection of all forms with one another. To illustrate by a single instance: the existing group of horses, with a single toe to each foot, was preceded in geological. Vin M —nnnM of the feet of the dlkerent K«'ncr» of Egvida (after Manh). a. Uot "»• 1" —'!':"™ "'J"*!*^: i ."_. „# j_-*„m (l^w«r Hlocenet: c. foot of Hilh r the dlSerent K«'ncr» of Efuiaa («rier jtannj. a, ion 'of 0»wA*p»-M (Koccne); 6, foot of AncMihMi>m(lA>^er Miocene); e, foot of mp- paritm (Pliocene); d, fool of the recent genu* Equui. time in America by forms with a greater number of toes, the latter increasing according to the antiquity of the group. These forms occur in succeeding geological formations. It is impossible to resist the conclusion that they are related gene- alogically (phylogenetically). 8
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
