NOV 1 1921 



CONTENTS 



Page 



Constitution 5 



By-Laws 7 



Approi)riation for 1919-1920 8 



Public Offenses— Hunting Wild Birds— Penalty .' 9 



Officers, 1920-1921 10 



(\immittees, Academy of Science, 1919 11 



Officers of the Academy of Science (A Table of) 12 



Members 14 



Fellows 14 



Non-Resident Members and Fellows 16 



Active Members 18 



Minutes of the Spring Meeting 30 



Minutes of the Thirty-sixth Annual Meeting 32 



Program of the Thirty-sixth Annual Meeting 39 



Memorial of Ulysses Orange Cox — Barton W. E\ermann 45 



Biological Laws and Social Progress — H. L. Bruner 51 



Health Ser\ice at Purdue University — O. P. Terry 59 



Some Guesses by an Ignoramus — Robert W. McBride 65 



Report of a Study of Mental Ability of Children in One Orphans' Home 



in Indiana — Arthur H. Estabrook 69 



Tests of the Emotions — Sidney L. Pressey 71 



Undergraduate Research in Our Colleges and Universities — Horace A. 



Shonle 75 



State Archaeological Survey; Xatioiuil Research Council; Division of 



Anthropology and Psychology 79 



Whistling Swans— Etta S. Wilson 83 



Notes on the Termites of Indiana — Harrj' F. Dietz 87 



The Fresh-Water Medusaeof Boss Lake, Elkhart, Indiana — F. Payne. . 97 



Notes on Indiana Dragonfiies — E. B. Williamson 99 



The Anatine Genus Nyroca and Its Nearest Allies — Harry C. 0])erholser 105 



Some Observations on the Pythons — W. Henry Sheak 115 



Mallophaga of Our Native Birds— Edwin J. Kohl 119 



Some Rare Indiana Birds — Amos W. Butler 135 



The Effect of Adrenin on the Pigment Migration in the Melanophores 



of the Skin and in the Pigment Cells of the Retina of the Frog — 



Andrew J. Bigney 141 



The Effect of Centrifugal Force on Plants — F. M. Andrews 143 



The Effect of Aeration on Plants— F. M. Andrews 149 



Phyllotaxis of Specularia perfoliata — F. M. Andrews 149 



An Improved Method for Regulating the Tliickness of Microtome 



Sections — F. M. Andrews 151 



Studies on Pollen, III — F. M. Andrews 155 



The Ustilaginales of Indiana, II — H. S. Jackson 157 



(3) 



