21 



BOTANY. 



*1. The Peronosporales of Indiana, 10m G. W. Wilson 



2. The Existence of Roestelia Pencillata and its Teliosporic Phase in North America, 15m F. D. Kern 



3. The Heterotype Chromosomes in Pinus and Thuja, 10m I. M. Lew s 



4. Insect Galls of Indiana, 10m Mel T. Cook 



GEOLOGY. 



1. A Probable Origin of^the^Smal! Mounds of the Mississippi and^Texas Regions, 15ra A, B. Reagan 



2. Indiana Soil Types, 10m C. W. Shannon 



3. Structures in the So-Called "Huron" Formation of Indiana, induced by the Solution of the Mississip- 



pian Limestone Beneath, 10m J. W. Beede 



4. Stratigraphy of the Richmond Formation of Indiana, 20m E. R. Cumings 



*5. Some peculiarit es of the Valley Erosion of Big Creek and its Tributaries in Jefferson County, 6m. . . . 



Glenn Culbertson 



PHYSICS. 



*1. The Cause of Surface Tension, 10 m A. L. Folev 



*2. Loss of Weight in Chemical Reactions, 10m J B. Dutcher 



CHEMISTRY. 



*1. The Electrolytic Production of Selenic Acid from Lead Selenate, 10m F. C. Mathers 



*2. Some Complex Ureids, 5m James Currie 



*3. Thiocarbonylsalicylamide and Derivatives, 5m R. E. Lyons 



4. The Volumetric Determination of Selenic Acid, 5m RE. Lyons 



* Papers so marked were read. 



