BOTANY AND ZOOLOGY. 
First Book of Botany. Designed to Cultivate the Observing Powers 
of Children. By Exiza A, Youmans. 12mo. 202 pages. 
Descriptive Botany. A Practical Guide to the Classification of 
Plants, with a Popular Flora, By Exiza A. Youmans, 12mo 
336 pages. 
Henslow’s Botanical Charts, modified and adapted for Use in the 
United States. By Exiza A. Youmans. Beautifully colored. Six 
Charts with Key, mounted on Rollers. Per set, $15.75. 
Elements of Zoology. By C. F. Hoxper, Fellow of the New York 
Academy of Sciences, Corresponding Member of the Linnean 
Society, etc.; and J. B. Houper, M. D., Curator of Zodlogy, American 
Museum of Natural History, Central Park. 12mo. 885 pages. 
Science Primer of Botany. 18mo. 
First Book of Zoology. By Epwaxp S. Morsz, Ph. D., formerly 
Professor of Comparative Anatomy and Zoélogy in Bowdoin Col- 
lege. 12mo. 190 pages. 
Nicholson’s Text-Book of Zoology. 12mo. 383 pages. 
Nicholson’s Manual of Zoology. For the Use of Students. With 
a General Introduction on the Principles of Zodlogy. Revised and 
enlarged edition. 248 Woodcuts. 12mo. 678 pages. 
Winners in Life’s Race: or, The Great Backboned Family. By 
ARABELLA B. Buckiey. 12mo. 3867 pages. 
Life and her Children. Glimpses of Animal Life, from the Ameba 
to the Insects. With upward of 100 Illustrations. By ARABELLA B, 
Bucxtry. 12mo. 312 pages. 
The Crayfish. An Introduction to the Study of Zodlogy. By THomas 
H. Hoxuey, F.R.S, With 82 Illustrations. 12mo, 871 pages. 
D. APPLETON & CO., Publishers, 
NEW YORK, BOSTON, GHICAGO, SAN FRANCISCO, 
