
The American Naturalist. 
ASSOCIATE EDITORS: 
J. A. ALLEN, PH.D., American Museum of Natural History, = York. 
E. A. ANDREWS, PH.D., Johns Hopkins University, Baltim 
WILLIAM S, BAYLEY, PH.D., Colby University, sad EC. 
DOUGLAS H. CAMPBELL, PH.D. Stanford — 
J. H. COMSTOCK, S.B., Cornell University, It. 
LLIAM M. DAVIS, M.E., Harvard So Conbridps: 
ALES HRDLICKA, M.D., U.S. zn Museum, Washington. 
D. S. JORDAN, LL.D., Stanford University. 
CHARLES A. KOFOID, PH.D, CHAM = ee Perkeley. 
J. G. NEEDHAM, Pu.D., Lake Forest Unive 
ARNOLD E. ORTMANN, PH.D., Carnegie Mus m, Pittsburg. 
— D. P. PENHALLOW, D.Sc, F.R.S.C., McGill Sas Montreal. 
.H. M. RICHARDS, S.D., Columbia University, New E 
W. E. RITTER, PH.D., wee of California, Berkeley. 
ISRAEL C. RUSSELL, LL.D., University of Michigan, Ann Arbor. 
ERWIN F. SMITH, S.D., U. s. Department of Agriculture, Our 
LEONHARD STEJNEGER, LL.D., Smithsonian Institutio on, Washing ton. 
_ HENRY B. WARD, Pu.D, University of Nebraska, Linco 
JA WILLIAM M. WHEELER, Px. D. , American Museum = urat History, 
New York. 

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