BULLETIN OF THE NATIONAL RESEARCH COUNCIL VOLUME 2 March, 1921, to July, 1921, inclusive PUBLISHED BY THE NATIONAL RESEARCH COUNCIL OF THE NATIONAL ACADEMY OF SCIENCES WASHINGTON, D. C. 1921 CONTENTS Funds available in 1920 in the United States of America for the encouragement of scientific research Report on photo-electricity, including ionizing and radiating PAGE Part I by HARLOW SHAPLEY. Part II by HEBER D. CURTIS 171 Cooperative experiments upon the protein requirements for the growth of cattle. . . . . . . . By HENRY PRENTISS ARMSBY The research activities of departments of the state government of California in relation to the movement for reorganization A general survey of the present status of the atomic structure |