A simple, well constructed bacteriological incubator
GAGE—The Microscope
An Introduction to Microscopic Methods and to Histology
By SIMON H. GAGE.
Twelfth Edition. Entirely rewritten, and with many new illustrations.
Price, postpaid, $3.00.
This work aims to give help to everyone who uses the microscope, whether he is a beginner or an advanced worker.
COMSTOCK—A Manual for the Study of Insects
By JOHN HENRY COMSTOCK, Professor of Entomology in Cornell University, and ANNA BOTSFORD COMSTOCK, member of the Society of American Wood-Engravers. 8vo. cloth, IX. +701 pages, 797 figures in the text, and six full page plates. Nearly all of the figures were engraved especially for this work. Postpaid $4.07; net $3.75.
This hand-book is designed to meet the needs of teachers in the public schools and of students in high schools and colleges.
NEEDHAM—General Biology
A book of outlines and practical studies for the general student