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H 



The Twentieth Century Text Books of Biology* 



PLANT RELATIONS, 12nio, cloth $1.10 



PLANT STRUCTURES, l2mo, cloth 1.20 



PLANT STUDIES, l2mo, cloth 1.20 



PLANTS, I2mo, cloth 1.80 



ANALYTICAL KEY TO PLANTS, 12mo, flexible cloth . . .75 

 All by JOHN MERLE COULTER. A M.. Ph. D.. Head of Dept. of Botany. University of Chicago. 



They are already the preferred texts, and the 

 reasons will be apparent on examination. 



ANIMAL LIFE: A First Book of Zoology. 



By DAVID S. JORDAN. M. S., M. D , Ph. D., LL. D., President of the LelancJ Stanford Jun- 

 ior University, and VERNON L. KELLOGG, ^L S., Professor in LelancJ Stanford Junior 

 University. 12mo. Cloth, $1.20. Now ready. 



Not a book for learning the classification, anatomy, and nomenclature ^animals, but to 

 show how animals reached their present development, the effects of environtnent, their place 

 in Nature, their relations to one another and to the human race. Designed Jor one-half 

 year's work in high schools. Send for sample pages. 



ANIMAL FORMS: A Second Book of Zoology. 



By DAVID S. JORDAN, M. S., M. D , Ph D , LL. D., and HAROLD HEATH, Ph. D., 

 Professor in Leiand Stanford Junior University. Ready in February, igoi . 



D. APPLETON AND COMPANY, Publishers, Neiv York, Chicago, London. 



Recent Scientific Works 



IN Astronomy, Dr. Simon Newcomb's new book, pub- 

 lished October, 1900; in Physics, the Johns Hopkins 

 text of Professors Rowland and Ames ; also in Physics 

 for second and third year high school work, the text 

 of Dr. Hoadley, of Swarthmore; in Physiology, the text 

 by Drs. Macy and Norris, based on the Nervous System ; 

 also the High School Physiology indorsed by the W. C, 

 T. U., written by Di's. Hevves, of Harvard University; in 

 Geology, the Revised '• Compend" of Dr. Le Conte, and 

 the two standard works of Dana,— The Manual for Uni- 

 versity Work, and the New Text Book, revision and 

 rewriting of Dr. Rice, for fourth year high school work; 

 in Chemistry, tlie approved Storer and Lindsay, recom- 

 mended for secondary schools by the leading colleges; 

 in Zoology, the Laboratory Manual of Dr. Needham, of 

 Cornell; and the series "Scientific Memoirs" edited by 

 Dr. Ames, of John Hopkins. Nine volumes ready. 

 The publishers cordially invite correspondence. 



AMERICAN BOOK COMPANY, Cincinnati 



