The American Naturalist. 



ASSOCIATE EDITORS: 

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

 E A. ANDREWS, PH.D.,>>i«. Hopkins University, Baltimore. 

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

 CHARLES E. BEECHER. Ph.D..Kz/. Univer^^ New Haven 

 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.. US. National MuZm, fVasnLon 

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

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

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

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

 D. P. PENHALLOW, S.B., F.R.M.S., McGill University, mZ^oI 

 H. M. RICHARDS, S.D., Columbia University, N^ Y^rk 

 W. E. RITTER, PH.D., University of California Z-kefev 

 kIw?^"- ^""^^^^^^ LL.D., UnLsitioJmfkr'at'Ann Arbor. 

 ERWIN F. SMITH, S.D., U S. Department of Ag^culture, wZZngton, 

 LEONHARD STEJNEGER, lA..^., Snzithslt^n lZZt^J^^ 

 W. TRELEASE. ^.l>., Missouri Botanical ZrZ St I^^T' 

 HENRY B. WARD, Ph.D., University of Zbr^kf lZoL 

 ^^^^^MM^ wheeler; Vn.VALZ7M^^:m^^^^^ J^^^^ory, 



nf N^nr^^i'^w^'f'''''' Naturalist is an illustrated monthly magazine 

 tl Zf ^^^^t^^y'.^^d^^" aim to present to its readers the leading 

 BnSnf P f ^s^o^f "es in Anthropology, General Biology, Zoology, 

 .^tl l' ^^l^^^'^l^gy' Geology and Physical Geography, and MinS^ 

 ll£ '^^^ ^^"^^^^^ ^^^h month will consist of 



ditrmlL?''' T^'^T containing accounts and discussions of new 

 dkt?nln7S'f ^T' r '"^'"'^^^ expeditions, biographical notices of 

 distinguished naturalists, or critical summaries of progress in some 

 Doints'i '^^^^TV"" '-'f ^ ^^^^^ briefer articfes L™s 



pomts c4 interest, editonal comments on scientific questions of the 

 .nn?\!f'''7' literature, and a quarterly record of 



gifts appointments, retirements, and deaths. ^ 

 to se^d in^W f ^^^^ interesting to say are invited 



or nubh?Jfnn n T ^K^f 'T^^ ^^deavor to select 



same Hn^^ ^ ^^^^ ''t'^^ ^"^^^ scientific value and at the 



to the gene:aU:Lntifi'c%':at"'^^^^^^ ^""^ 

 sentfo^TETMERfr'.^'^M^ exchanges, etc., should be 



All h,f.il« Naturalist, Cambridge, Mass. 



publishers c°°^«»umcations should be sent direct to the 



Annual «ub«nription $4.00. net. in advance. Single copies, 85 cents. 



GINN & COMPANY, Publi: 



