The American Naturalist 



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

 E. A. ANDREWS, Ph.D., Johns Hopkins University, BaUimore 

 WILLIAM S. BAYLEY, Ph.D., Colby University, Waterville 

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

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

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

 ALES HRDLICKA, M.D., U. S. National Museum, Washin^on 

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



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

 J. G. NEEDHAM, Ph.D., Lake Forest University 

 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, BerkeUy 

 ERWIN F. SMTH, S.D., U. S. Department of Agriculture, Washington 

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

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

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

 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 Anthropology, General Biology, Zoology, 

 Botany, Paleontology, Geology and Physical Geography, and Miner- 

 alogy and Petrography. The contents each month will consist of 

 leading original articles containing i\< "^'t 1 .l^Mi--^)')^ of new 



discoveries, reports of scientific cn;. of 

 distinguished naturahsts. or cntii';ii 



line; and in addition to these theri is 

 points of interest, editorial comnn lii l ,e 



day, critical reviews of recent literaiurc. ;ni.; of 

 giftg, appointments, retirements, and deaths. 



All naturalists who have anything intere-n ^ 

 to send in their contributions, but the editors , ■ ( t 



for publication only that which is of truly scis-; . ■ , the 



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

 to the general scientific reader. 



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

 sent to The America.v Natcr\ust, Cambridge, Mass. 



All business communications should be sent direct to the pub- 

 Annual lubscrlptlon, $4.00, net. In advance. Single cople«, 35 cents 



GINN & COMPANY, Publishers 



