(1) Fresh-water Biology (2) Aquatic Microscopy for Beginners; or, Common Objects from the Ponds and Ditches

Abstract

(1) PROFS. WARD AND WHIPPLE and their JL twenty-five collaborators have produced a volume to which students may refer for precise information upon the organisms met with in fresh water in North America. Introductory chapters deal with general biological factors and methods of collecting. Succeeding chapters, devoted respectively to single orders or classes, give a general account of the occurrence, a brief description of the anatomy (including reference to the features used in classification) and of the life-history and biological relations, and, finally, a key to the genera, and in several cases also to the principal species of the group. The information in the key about any given genus includes not only the diagnostic characters, but also in most cases an illustration and some reference to the frequency, the range, or other data; thus the whole information “forms a solid panel and appeals promptly and as a whole to the eye and mind of the student.”

(1) Fresh-water Biology.

By Prof. H. B. Ward Prof. G. C. Whipple. With the collaboration of a Staff of Specialists. Pp. ix + 1111. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1918.) Price 28s. net.

(2) Aquatic Microscopy for Beginners; or, Common Objects from the Ponds and Ditches.

By Dr. A. C. Stokes. Fourth edition, revised and enlarged. Pp. ix + 324. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1918.) Price 10s. 6d. net.