BY B. N. COMINGS, M. D.,

PROFESSOR OF PHYSIOLOGY, CHEMISTRY, AND NATURAL HISTORY, IN CONNECTICUT STATE NORMAL SCHOOL.

12mo. 324 pages. Price $1 25.

REVISED EDITION, WITH AN APPENDIX.

Professor Comings' thorough acquaintance with every department of Physiology, and his long experience as a teacher of that science, qualify him in an eminent degree for preparing an accurate and useful text-book on the subject. He has lost no opportunity of introducing practical instructions in the principles of hygiene, thus not only making the pupil acquainted with the wondrous workmanship of his own frame, but showing him how to preserve it in a sound and healthy state. Avoiding technical terms, as far as possible, he has brought the subject fully within the comprehension of the young, and has clothed it with unusual interest, by judicious references to the comparative physiology of the inferior animals. Pictorial illustrations have been freely introduced, wherever it was thought they could aid or interest the student.

Physiology cannot but be considered, by every intelligent and reflecting mind, an exceedingly interesting and necessary study. It makes us acquainted with the structure and uses of the organs of life, and the laws by which we may keep them active and vigorous for the longest period. The publishers would respectfully urge its importance on such teachers as have not heretofore made it a regular branch in their institutions; and would solicit, at the hands of all, an impartial examination of what is pronounced by good judges, "the best elementary text-book" on the science.

From M. Y. Brown, Principal of Webster School, New Haven.

"I have used Comings' Class-Book of Physiology for nearly two school terms in the First Department of my school. I am happy to say that I regard it the best text-book on this important branch with which I have any acquaintance. The subjects are systematically arranged; the principles, facts, and illustrations are clearly and fully represented to the pupil. I find that his introduction of Comparative Anatomy and Physics, tends greatly to increase the interest of the pupil in this most important and necessary study. I therefore can cheerfully recommend this admirable work to my fellow-teachers as one of rare excellence, and hope it may take the rank it deserves as a text-book upon this subject."

From Abraham Powelson, Jr., Teacher, Brooklyn, New York.

"After a very careful examination of the Class-Book of Physiology, by Comings, I can freely say that I consider it a performance of superior excellence. It embodies a fund of information surpassing in importance and variety that of any other work of the kind which has come under my notice."

"Get the Best."