Cloth, 12mo, 401 pages $1.20

A text-book for high school classes and other schools of secondary
grade.

Hooker's Natural History

By WORTHINGTON HOOKER, M.D. Cloth, 12mo, 394 pages 90 cents

Designed either for the use of schools or for the general reader.

Morse's First Book in Zoölogy

By EDWARD S. MORSE, Ph.D. Boards, 12mo, 204 pages 87 cents

For the first study of animal life. The examples presented are such as
are common and familiar.

Nicholson's Text-Book of Zoölogy

By H.A. NICHOLSON, M.D. Cloth, 12mo, 421 pages $1.38

Revised edition. Adapted for advanced grades of high schools or
academies and for first work in college classes.

Steele's Popular Zoölogy

By J. DORMAN STEELE, Ph.D., and J.W.P. JENKS.