A LIBRARY 



OP THE MOST IMPORTANT 



STAND AKD WORKS ON EVOLUTION. 



Origin of Species by Means of Natural Selection, or the Prescr- 

 vation of Favored Races in the Struggle for Life. By Charles Bar- 

 win, LL. D., F. R. S. New and revised edition, with Additions. 

 12mo. Cloth, $2.00. 



"Personally and practioally exercised in zoology, in minute anatomy, in 

 geology, a student or geographical distribution, not iu maps and in mu- 

 seums, but by long voyages and laborious collection ; having largely ad- 

 vanced each of these branches of science, and having spent many years in 

 gathering and sifting materials for his present worlij flie store of accurately- 

 registered facts upon which the author of the ' Origin of Species ' is able to 

 draw at will is prodigious." — ProfeaeorT. H. Buiuey. 



II. 

 Variation of Animals and Plants nnder Domestication. By 



Charles Darwin, LL. D., F. R. S. With Dlustrations. Revised edi- 

 tion. 2 vols., 12mo. Cloth, $5.00. 



" We shall learn something of the laws of inheritance, of the efifeots of 

 crossing different breeds, and on that sterility which often supervenes when 

 orjganio beings are removed from their natural conditions or life, and like- 

 wise when they are too closely interbred." — From the Inti'oiiuction. 



in. 



Descent of Man, and Selection in Belation to Sex. By Charles 



Darwin, LL. D., P. R. S. With many Illustrations. A new edition, 



12mo. Cloth, $3.00. 



" In these volumes Mr. Darwin has brought forward all the facts and 

 arguments which science has to offer in favor of the doctrine that man has 

 arisen by gradual development from the lowest point of animal life. Aside 

 froni the logical purpose which Mr. Darwin had in view, his work is an 

 original and fascinating contribution to the most interesting portion of nat- 

 ural history." 



IV. 

 On the Origin of Species ; or, The Causes of the Phenomena of Or- 



ganicNature. By Professor T.H. Huxley, P. R.S. 12mo. Cloth, $1.00. 



" Those who disencumber Darwinism of ite difficulties, simplify its state- 

 ments, relieve it of teohnioalitaes, and bring it so distinctly within the hori- 

 zon of ordinary apprehension that persons of common sense may judge for 

 themselves, perform an invaluable service. Such is the character of the 

 present volume."— JJ-om the Prefact to the American edition. 



V. 



Darwiniana. Essays and Reviews pertaining to Darwinism. By Asa 

 Gray, Fisher Professor of Natural History (Botany) in Harvard TJni- 

 versity. 12mo. Cloth, $2.00. 

 "Although Professor Gray is widely known in the world of science for 



his botamcal rcsearohes, but few are aware that he is a pronounced and un- 



