BIRDS OF THE WORLD. A popular account by Frank H. Knowlton, M.S., Ph.D., Member American Ornithologists Union, President Biological Society of Washington, etc., with Chapter on Anatomy of Birds by Frederic A. Lucas, Chief Curator Brooklyn Museum of Arts and Sciences, and edited by Robert Ridgway, Curator of Birds, U. S. National Museum. 8vo. 872 pp. With 16 colored plates and 236 illustrations; $7.00 net; carriage extra.
NORTH AMERICAN TREES, by N. L. Britton, Director of the New York Botanical Garden. 8vo. 894 pp. With 781 illustrations; $7.00 net; carriage extra.
FERNS, by Campbell E. Waters, of Johns Hopkins University. 8vo. 362 pp. Many illustrations; $3.00 net; by mail, $3.30.
THE BIRD: ITS FORM AND FUNCTION, by C. W. Beebe, Curator of Birds in the New York Zoological Park. 8vo. 496 pp. With frontispiece in color and 370 illustrations from photographs. $3.50 net; by mail, $3.80.
NATURE AND HEALTH, by Edward Curtis, Professor Emeritus in the College of Physicians and Surgeons. 12mo. 313 pp. $1.25 net; by mail, $1.37.
THE FRESHWATER AQUARIUM AND ITS INHABITANTS. A Guide for the Amateur Aquarist, by Otto Eggeling and Frederick Ehrenberg. Large 12mo. 352 pp. Illustrated. $2.00 net; by mail, $2.19.
THE LIFE OF A FOSSIL HUNTER, by Charles H. Sternberg. large 12mo. 286 pp. Illustrated, $1.60 net; by mail, $1.72.
INSECT STORIES, by Vernon L. Kellogg. Large 12mo. 298 pp. $1.50 net; by mail, $1.62.
FISH STORIES, by Charles F. Holder and David Starr Jordan. Large 12mo. 336 pp. Illustrated. $1.75 net; by mail, $1.87.
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