The American Naturalist/Volume 12

THE

AMERICAN NATURALIST,

AN ILLUSTRATED MAGAZINE

OF

NATURAL HISTORY.

EDITED BY

A. S. PACKARD, Jr., and EDWARD D. COPE.

ASSOCIATE EDITORS

Dr. ELLIOTT COUES, Department of Mammals and Birds.
Prof. O. T. MASON, Department of Antropology.
ELLIS H. YARNALL, Dep. of Geography and Travels.
Dr. R. H. WARD, Department of Microscopy

VOLUME XII.

(JANUARY, 1878. — DECEMBER, 1878.)

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Articles

• "Aspidium spinulosum (Swartz) and its varieties," by George E. Davenport, Nov. 1878.