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The American Naturalist 
A MONTHLY JOURNAL DEVOTED TO THE NATURAL 
SCIENCES IN THEIR WIDEST SENSE. 
MANAGING EDITORS'. 
Profs. E. D. COPE, Philadelphia, Pa., and J. S. KINGSLEY, Boston, Mass. 
ASSOCIATE editors: 
Prof. W. S. Bayley, of Colby University, Waterville, Me., Dept, of Petrography. 
Prof. W. H. Hobbs, Madison, Wise., Dept, of Mineralogy. 
Dr. C. E. Bessey, of the University of Nebraska, Lincoln Neb., Dept, of Botany. 
Dr. Erwin F. Smith, Washington, D. C., Dept, of Vegetable Physiology. 
Prof. C. M. Weed, of College of New Hampshire, Durham, N. H., Dept, of Ento¬ 
mology. 
Prof. W. Romaine Newbold, University of Pennsylvania, Dept, of Psychology. 
Prof. E. A. Andrews, of Johns Hopkins University, Baltimore, Md., Dept, of 
Embryology. 
H. C. Mercer, of the University of Pennsylvania, Dept, of Anthropology. 
Dr. C. O. Whitman, of Chicago University, Chicago, Ill., Dept, of Microscopic 
Technique. 
1867 30TH YEAR. 1896 
The American Naturalist differs 
from most other Journals in the extent 
and efficiency of its editorial corps, 
which embraces eleven men, mostly pro¬ 
fessors in well-known Universities in 
Maine, New Hampshire, Boston, Mass., 
Philadelphia, Baltimore, and Washing¬ 
ton and west to Chicago, Madison, 
Wise., and Lincoln, Neb. This editorial 
supervision secures competent criticism 
of the subject matter, as well as breadth 
of scope. In this way is secured also 
the principal aim of The Naturalist, 
the presentation to the public of the 
latest results of scientific progress in 
readable form, while the just relations 
of authors to their work and to each 
other are strictly maintained. We are 
especially able to present monographic 
abstracts of especial departments of 
research, thus giving to our readers at 
once comprehensive knowledge of sub¬ 
jects and bringing them en rapport with 
the present state of science as well as 
with the past. 
As heretofore, The Naturalist en¬ 
deavors to keep its readers informed as 
to the proceedings of scientific societies 
and other organizations for the promo¬ 
tion of science. It is independent of 
official bodies, and insists on proper 
administration of trusts held by them 
for the benefit of science and education. 
In performing this service, it stands 
alone among the scientific journals of 
the country, and it bespeaks the support 
of the friends of sound administration, 
in view of the fact that in so doing it 
incurs the hostility of more or less influ¬ 
ential persons. 
The American Naturalist was com¬ 
menced Twenty-nine years ago, by an 
association of the students of Professor 
Agassiz, at Cambridge. While it has 
followed the fortunes of its founders 
from comparative youth to a vigorous 
maturity, it lias gathered to its support 
most of the biologists and geologists of 
North America. Its constituency of 
authors now includes a majority of the 
men of this class in the country. 
PHILADELPHIA, U. S. A. 
The Edwards & Decker Co., 
5 1 8 and 520 Minor Street, 
Philadelphia, U. S. A. 
Advertising Rates will be furnished upon Application. Sample Copies, 15c. 
