The American Naturalist 



FREDERIC T. LEWIS, M. D., Harvard Medical School, Boston, Mass. 

 ASSOCIATE EDITORS 

 J. A. ALLEN, Ph.D., American Museum of Natural History, New York. 

 E. A. ANDREWS, Ph.D., Johns HopHns University, Baltimore 

 WILLIAJI S. BAYLEY, Ph.D., Colby University, WaterviUe 

 DOUGLAS H. CAMPBELL, Ph.D., Stanford University 

 J. H. COMSTOCK, S.B., ComeU University, Ithaca 

 WILLIAM M. DAVIS, M.E., Harvard University, Cambridge 

 ALES HRDLICKA, M.D., U. S. National Museum, Washington. 

 D. S. JORDAN, LL.D., Stanford University 



CHARLES A. KOFOID, Ph.D., University of California, Berkeley, 

 J. G. NEEDHAM, Ph.D., Cornell University, Ithaca 

 ARNOLD E. ORTMANN, Ph.D., Carnegie Museum, Pittsburg 

 D. P. PENHALLOW, D.Sc., F.R.S.C., McGiU University, Montreal 

 H. M. RICHARDS, S.D., Columbia University, New York 

 W. E. RITTER, Ph.D., University of California, Berkeley 

 ERWIN F. SMITH, S.D., U. S. Department of AgricuUure, Washington. 

 LEONHARD STEJNEGER, LL.D., Smithsonian Institution, Washington 

 W. TRELEASE, S.D., Missoun Botanical Garden, St. Louis 

 HENRY B. WARD, Ph.D., University of Nebraska, Lincoln 

 WILLIAM M. WHEELER, Ph.D., American Museum of Natural History 

 New York 



The American Naturalist is an illustrated monthly magazine 

 of Natural History, and will aim to present to its readers the leading 

 facts and discoveries in General Biology, Anthropology, Zoology, 

 Botany, Paleontology, and the several branches of Geology. 



The contents each month will consist of leading original articles 

 containing accounts and discussions of new discoveries, reports of 

 scientific expeditions, biographical notices of distinguished naturalists, 

 or critical summaries of progress in some line; in addition to these 

 there will be briefer articles on various points of interest, editorial 

 comments on scientific questions of the day, and critical reviews 

 of recent literature. 



All naturalists who have anything interesting to say are requested 

 to send their contributions; candidates for the higher scientific degrees 



pertaining to their chosen topics. The editors will endeavor to select 

 for publication only that which is of true scientific value and at the 

 same time so written as to be intelligible, instructive, and interesting 

 to the general scientific reader. 



All manuscripts, books for review, exchanges, etc., should be 

 sent to Frederic T. Lewis, M. D., Harvard Medical School, Boston, 



All business communications should be sent to Messrs. Ginn 

 & Company, 29 Beucon St., Boston, Ma.ss. 



GINN & COMPANY, Publishers 



