The American Naturalist 



MSS intended for publication and books, etc., intended for review should be 

 sent to the Editor of THE AMERICAN NATURALIST, Garrison-on-Hudson, New York. 



Articles containing research work bearing on the problem of organic evolu- 

 tion are especially welcome, and will be given reference in publication. 



ndred reprints of Contributions are supplied to authors free of charge. 



subscription price is four dollars a year. Foreign postage is fifty c 

 Canadian postage twenty-five cents additional. The charge for single t 

 thirty-five cents. The advertising rates will be sent on application. 



THE SCIENCE PRESS 

 Lancaster, Pa. Garrison, N. Y. 



NEW YORK : Sub-Station 84 



Entered as second-class matter, April 2, 1908, at the Post Office at Lancaster, Pa., under the Act of 



Important New Scientific Books 



PUBLISHED BY THE MACMILLAN COnPNY 



Botany 



The Origin of a Land Flora. A Theory based upon the facts of Alternation. 

 By F. O. Bower, Sc.D. ? F.R.S. With numerous illustrations. 



Cloth, gilt top, xi+727 pp., illm., index, 8vo, $5J" ' 

 s morphology of the lowest forms of plan 

 development of their reproductive systems. The author endeavors to sh 

 is originated from an aquatic ancestor, and traces the rnetho is of speciali 

 and the establishment of the forms of the higher plants. A book of the highest importance not only to 

 botanists but to biologists in general. 



NEW AND STANDARD HAND-BOOKS ON AGRICULTURE, ETC. 

 Elements of Agriculture, Southern and Western. By ^ . C. Welbobn, 

 B.S., M.S., M.P.A. 



Cloth, xvi+829 pp., illus., appendix, glossary, index, 12mo, $.75 net. 

 Note. — This is a thoroughly modern treatise on farming as practiced in the G«|f States, irorn the 

 Point of view of the scientific agriculturist. It is adapted to school use, but is of practical service to any 

 farmer in that part of the country. The author is vice-director of the Texas Experiment Station. 



Xe-iszues of the highly The Principles of Fruit Growing. By L. H. Bailey. 

 r'tlued Hand Booh known Edition, $1.50 net, by mail $1.66. 



„„ „i „ , °° „ „ . Irrigation and Drainage. By F. H. King. 



as the Garden Crafl and * Fifth Edition, $1.50 net, by mail $1.68. 



Rimil Sclrnre &rU-*, edited Principles of Vegetable Gardening. Rv L. II. Bailey. 



by L. H. BATLEY, of Cor- Sixth Edition, $1.50 net, by mail $1.68. 



nett University, Editoi 



Fourth Edit ion.. $1 50 n> . by m i ! ?1.66. 



Tenth Mition, $1.25 net, by mail $1.38 

 r Geo. C. Watson. 



.S///A Edit,;*, Sl.j: h-j m-ui $1.4? 



The flacmillan Company 



