Front matter
Reading edition
BY
RUSSELL H. CHITTENDEN, Ph.D., LL.D., Sc.D.
AUTHOR OF “PHYSIOLOGICAL ECONOMY IN NUTRITION,” ETC. PROFESSOR OF PHYSIOLOGICAL CHEMISTRY AND DIRECTOR OF THE SHEFFIELD SCIENTIFIC SCHOOL OF YALE UNIVERSITY
WITH ILLUSTRATIONS
NEW YORK
FREDERICK A. STOKES COMPANY
Publishers
Copyright, 1907, By Frederick A. Stokes Company All rights reserved May, 1907 FIFTH PRINTING