By JAMES G. NEEDHAM, Professor of Limnology and General Biology in Cornell University. Cloth 8vo. XIV. +542 pages; 288 figures, mostly original. Postpaid $2.00.
This book is expressly designed to help the general student obtain a comprehensive grasp of the principles of biology.
NEEDHAM & LLOYD—The Life of Inland Waters
A Text-Book of Freshwater Biology
By JAMES G. NEEDHAM, Ph.D., Professor of Limnology and General Biology in Cornell University, and JOHN T. LLOYD, A.B., Assistant in Limnology in Cornell University.
This book is a broad presentation of the field of fresh-water biology, primarily in its scientific aspects, also in its relation to commercial, civic, aesthetic and public health interests of man. There is no book in the English language covering the field. Copiously illustrated with photographs from Nature. 438 pages; 244 figures. Price $3.00.
GAGE—Optic Projection
By SIMON HENRY GAGE, Professor Emeritus of Histology and Embryology in Cornell University, and Henry Phelps Gage, Ph. D.
This work of over 700 pages and with over 400 figures is of especial interest to workers in all fields of Biology in that it deals especially with the use of the Projection Microscope for demonstrations and for drawing. It also gives the fundamental principles of all the forms of projection. A 16-page circular will be sent on request. Postpaid, $3.00.
RILEY—Handbook of Medical Entomology