646 INDEX 



Page 



Physics, modern, Waves and corpuscles in (De Broglie) 243 



Pierce, Dr. W. Dwight 29 



Pilsbry, Dr. H. A 35 



Pinchot, Hon. Gifford 29, 35, 36, 85 



Pitcairn, Harold F. (The autogiro: Its characteristics and accomplish- 

 ments) 265 



Plants, growth of, New researches on the effect of light waves on the 



(Brackett and Johnston) 255 



Poole, Arthur J 13, 40 



Poore fund, Lucy T. and George W 4, 150, 155 



Post Office Department, United States 31 



Postmaster General (member of the Institution) xi 



Pratt, A. G 31 



Prehistory, Old World, Recent progress in the field of (MacCurdy) 495 



Prelhvitz, Henry 48 



President of the United States 2 



Printing, allotments for 146 



Printing and publication, Smithsonian advisory committee on 146 



Public Buildings and Parks, Office of 40 



Publications of the Institution and branches 13, 40, 52, 68 



report 141 



R 



Radiation and Organisms, Division of 1, 11 



cooperation 120 



development of laboratory 116 



initiation of experiments 117 



library 126, 134 



personnel 122 



phototropic experiments 118 



plant growth experiments 117 



report 115 



staff XII 



summary 122 



Radioactivity, The moon and (Forbes) 207 



Rains, The first, and their geological significance (Hadding) 285 



Ranger bequest, Henry Ward 18, 42, 47 



exhibit 46,48 



fund 18 



purchases 51 



Rathbun, Miss Mary J 129 



Ravenel, William de C., administrative assistant to the secretary xi, 129 



Redfield, E. W 45 



Redwood, Mrs. Frances T 31 



Reeds, Chester A. (Weather and glaciation) 295 



Regents of the Institution, Board of 2, 7, 18, 48 



annual meeting, December 12, 1929 159 



executive conmiittee, report 149 



meeting of February 13, 1930 160 



permanent committee, report 160 



proceedings of 159 



special meeting of May 29, 1930 161 



