A LIBRARY 



OF THE MOST IMPORTANT 



STANDARD WORKS ON EVOLUTION. 



Origin of Species by Means of Natural Selection, <>r the Preset-. 



vation of Favon .1 BaON in tin- Struggle for Life. By CHARLES DAR- 

 WIN, LL. D., F. R. S. New and revised edition, with Addition*. 

 12mo. Cloth, $2.00. 



' 1'ersonallv and practically exercised in zoology, in minute anatomy, in 

 geology, a student of geographical distribution, not in majw an.l in mu- 

 seums, but by Ion-; voya^-s an. I laborious eoDeottoO ; ! 

 vancea each of these branches of science, and having 8]H'in many y-ure in 

 gathering and sifting materials for his present work, the store of accurately- 

 red facts upon which the author of the k Origin of Species' ia able to 

 draw at will is prodigious." Professor 'L\ II. Huxley. 



II. 

 Variation of Animals and Plants under Domestication. By 



CHARLES DARWIN, LL. D., F. R. S. With Illustration*. Revised edi- 

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



"We shall learn something of the laws of inheritance, of the efl. 

 crossing different breeds, and on that sterility which often supervenes u hen 

 organic beings are removed from their natural conditions ot lite, and like- 

 wise when they are too closely interbred." From the Introduction. 



III. 



Descent of Man, and Selection in Relation to Sex. By CHARLES 

 DARWIN, LL. D., F. R. S. With many Illustrations. A new edition, 

 lamo. Cloth, $3.00. 



" In these volumes Mr. Darwin has brought forward all the fact* 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 

 from the logical i>ur|>r.>e which Mr. Darwin had in view, his work ia 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- 

 ganic Nature. By Professor T. II. HUXLEY, Y. R. S. 1 Umo. (Moth, $1.00. 

 44 Those who disencumber Darwinism of its difficulties, simplify its state- 

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

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

 themselves, ]K'rfonn an invaluable service. Such is the character of the 

 [Tescnt volume." From the Preface to the American edition. t 



V. 



Darwiniana. Essays and Reviews pertaining to Darwinism. By ABA 

 GRAY, Fisher Professor of Natural History (Botany) in Harvard Uni- 

 versity. 12rao, Cloth, $2.00. 



M Although ProtVssor ('.ray is widely known in the world of science far 

 his botanical rcseouvhus. but tew are aware that he is a pronounced and un- 



