The American Naturalist. 
ASSOCIATE EDITORS: 
i A. ALLEN, Pu.D., American Museum of Natural History, cw York. 
. A. ANDREWS, PH.D., Johns Hopkins University, Baltim 
Se S. BAYLEY, PH.D., Colby University, Waterville. 
CHARLES E. BEECHER, Pu.D., Yale University, New Haven. 
DOUGLAS H. CAMPBELL, Pu.D., Stanford University. 
J. H. COMSTOCK, S.B., Cornell University, Ithaca. 
WILLIAM M. DAVIS, M. E., Zarvard — Cambridge. 
ALES HRDLICKA, M.D., New York 2 
D. S. JORDAN, LL.D., Stanford Univ. 
CHARLES A. KOFOID, PH.D. d sedie of Illinois, Urbana. 
J. G. NEEDHAM, Pu.D., Lake Forest University. 
" ARNOLD E. ORTMANN, PH.D., Princeton University. 
D. P. PENHALLOW, S.B., F.R.M. S., McGill ee Montreal. 
H. M. RICHARDS, S.D., Columbia University, Ne 
W. E. RITTER, PH.D, Unitor hity of California, (ege 
FRANK RUSSELL, PH.D., Harvard University, Cambridge. 
ISRAEL C. RUSSELL, LL. D., University of Michigan, Ann Arbor. 
ERWIN F. SMITH, S.D., U. S. Department of Agriculture, Washington. 
LEONHARD STEJNEGER, Smithsonian Institution, Washington. 
W. TRELEASE, S.D., Missouri Botanical Garden, St. Louis. 
HENRY B. WARD, PH.D., University of Nebraska, Lincoin. 
WILLIAM M. WHEELER, Px.D., University of Texas, Austin. 
points of interest, editorial comments on scientific questions of the 
day, reviews of recent literature, and a final nat eee for 
scientific news and personal notices. 
5e | who have anything eni to say are invited 
ce send i in | their contributions, but the editors will endeavor to select 
for publication. only that which i is of ee scientific vae and at the 
same time written so as to be inte d interesting 
to the general scientific reader. _ - 
_ All manuscripts, books for 1 review, exchanges, = E should be 
sent to THE AMERICAN NATURALIST, Cambri 
Pe Feen communications should be sent direct to the 
iption, $4.00, xet, ix advanos. Single copios, 35 conta. 
C NEQU ME 
