THE MAMMALIA 



IN THEIR RELATION TO PRIMEVAL TIMES. 



Ey ProfeBsor OSCAK SCEMIDT, 

 Author of "The Doctrine of DeBCcnt and Darwinism." 



With 51 Woodcuts - - - - 12mo. Cloth, $1.50- 



*' Profeepor Schmidt was one of tl^e beet aathorlties on the snlDJect which he 

 has here treated with the knowledge derived Iroin the studies of n liletime. We 

 use the pust tense in speakint^ of him, bef>,an!'e, since this book was prii.tod, its 

 accompliBhed author has died in the fallneKS of hii> powers. Althon-rh he pre- 

 pared it nominally for the use of advanced ^tndentf, there are few if any pages 

 in his book which can not be readily nndersiood by the ordinary reader. Aa 

 the tirle implies, ProfesFOr Schmidt mv^ traced the iinks of connection between 

 existing mammalia and those types of wliich are knou n to us only through the 

 d)sch>Bure8 of ct^olo^y. Pij^s, camels, deer, horses, tlephu&ts. whales, sea's, 

 and apes, are a few of the chis ea who«ie devtilopment, step by step, is thus care- 

 luUy shown."— JVew York Journal of Commerce. 



^''The author undertake's to trace the hietory of mammalia through all the 

 ftages of their geotogico-zoOlogical development. It is nnnecespar.\ to e;iy that 

 hi? line of speculation fakes nim through many misty labyrinths of thought. 

 While, however, the writer deals much with intricate hypotheses, he devotes 

 much snace to (he anatomical structure and other physical peculiarities of tlie 

 mammnlia. Thia phase of his work gives it value apart from his theory."— 

 New York Herald. 



"The work is an excellent and digcrfmlnaiing troctise upon one of the most 

 important branches of what is by far the most stupendous scienlific problems 

 of the day. It is marked liv ripe fcholarBhin, keen intuition into the value and 

 relations of facte, and by that ciearncss which can only reeult Irom a perfect 

 mastery of the subject on the part of the author.''— Boston Courier. 



"The author presents this as furnishing 'proofs of the nc'esiity, the tmth, 

 and the value of D'lrwinism as the foundation for the theory of descent/ wiihin 

 the limited field desfrtbed by the title. The work is eurplemectal to the au- 

 thor's treatise on the "Doctrine of Descent and Darwinism,' published in the 

 same series, but It is complete in itself, and Includes ihe results of the latest 

 scientitlc research in this tei^."^"— Boston Jownal. 



*' Professor Schmidt oflfHrs this work as 'a Fngrjestive introduction to that 

 portion of the animal kingdom which 6tar:d«> cloeeet to anthropohigy.' He ci)m- 

 pares in detail living mammalia with their paieontological ancestors, pitying 

 particular attention lo the Ptrnnture of the teeth. Professor t^chmidt asserts 

 that man's teeth have decreased in number during Ms developmert, and are 

 likely to decr.>ase in fhture. Ue believes ihat man will retain his prcs( nt com- 

 plement of Angers and loes, but that the race will eventually become bald. The 

 work Irdlcates minuteness of research, and the subject-matter is ably pre- 

 sented." — Albany Evening Journal. 



•'As presenting the results of a consideraVe amount of original work the 

 volume should meet with a wide welcome at the hands of students of natural 

 history as a scieiice of di-velopment. It does not deal with (what human vanity 

 has chosen to call) the highest types of the animal kingdom merely as subjects 

 for description, or even lor comparison with other forms, but Cf>nsider8 them in 

 their relations to surrounding fticts. This irvrlves a study of the changes in 

 organism due to the alteration of those couditious through the lapse of geologic 

 time.'*— Chicago Tribune, 



*■"• The history of the development of animals and the history rf the enrth and 

 geography are made to confirm one another. The hook is illustiated with wood- 

 cuts, which will prove both interesting and instructive. It tells of living mam- 

 malin, piu'S, hippopotami, camels, deer, antelopes, oxen, rhinoceroses, torses, 

 elephants, sea-cows, whales, dogs, seals, insect-eaters, rodents, bats, semi apes, 

 apes and their ancestors, and the man of the future."- -Syrocwse {N. Y.) Berald. 



New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. 



