SCIENTIFIC PUBLICATIONS. 



General Physiology of Muscles and Nerves. 



By Dr. I. Rosenthal, Professor of Physiology at the University of Erlan- 

 geti. With seventy-five Woodcuts. ("International Scientific Series.") 

 12mo. Cloth, $1.50. 



" The attempt at a connected account of the general physiology of muscles and 

 nerves is, as far as I know, the first of its kind. The general data for this branch of 

 science have been gamed only within the past thii'ty years." — Extract from Preface. 



Sight : 



An Exposition of the Principles of Monocular and Binocular Vision. By 

 Joseph Le Conte, LL. D., author of "Elements of Geology"; "Religion 

 and Science" ; and Professor of Geology and Natural History in the Uni- 

 versity of California. With numerous Illustrations. 12mo. Cloth, $1.50. 



"It is pleasant to find an American book which can rank with the very best of 

 foreign works on this subject. Professor Le Conte has long been known as an origi- 

 nal investigator in this department ; all that he gives us is treated with a master- 

 haad." — The JVation. 



Animal Life, 



As affected by the Natural Conditions of Existence. By Karl Semper, 

 Professor of the University of Wurzburg. With two Maps and one hundred 

 and six Woodcuts, and Index. 12mo. Cloth, $2.00. 



" This is in many respects one of the most interesting contributions to zoological 

 literature which has appeared for some time." — Mature. 



The Atomic Theory. 



By Ad. Wurtz, Membre de I'lnstitut; Doyen Honoraire de la Faculte de 

 Medecine ; Professeur a la Faculte des Sciences de Paris. Translated by E. 

 Cleminshaw, M. a., F. C. S., F. I. C, Assistant Master at Sherborne School. 

 12mo. Cloth, $1.50. 



" There was need for a book like this, which discusses the atomic theorv both 

 in its historic evolution and in its present form. And perhaps no man of this age 

 could have been selected so able to perform the task in a masterly way as the illus- 

 trious French chemist, Adolph Wurtz. It is impossible to convey to the reader, in 

 a notice like this, any adequate idea of the scope, lucid instructiveness, and scien- 

 tific interest of Professor Wurtz's book. The modem problems of chemistry, which 

 are common!}^ so obscure from imperfect exposition, are here made wonderfully clear 

 and attractive." — The Fojoular Science Monthly. 



The Crayfish. 



An Introduction to the Study of Zoology. By Professor T. H. IIuxley, 

 F. R. S. With eighty-two Illustrations. "l2mo. Cloth, $1.75. 



" Whoever will follow these pages, crayfish in hand, and will try to verify for 

 himself the statements which they contain, will find himself brought face to face 

 with all the great zoological questions which excite so lively an interest at the pres- 

 ent day." 



" The reader of this valuable monograph will lay it down with a feeling of won- 

 der at the amount and variety of matter which has been got out of so seemingly 

 slight and unpretending a subject." — Saturda>j Beview. \ 



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



