21 



PHYSICS 



30. The Hall Effect in "Hensler" Alloy, 10m D. H. Weir 



*31. The Distribution of Stress in a Riveted Joint, 15m Albert Smith 



32. Coefficient of Expansion of Brick, 10m C. V. Seastone 



33. Measurement of Water by Means of a Vertical Jet, 5m C. V. Seastone 



*34. Mathematical Principles Applied in Earthwork Construction, 10m J. Garman 



35. Strength of Materials Under Combined Stresses, 5m E. L. Hancock 



36. Lines on a Pseudosphere and Syntractrix of Revolution, 5m E. L. Hancock 



37. Elastic Changes in Steel due to Overstrain, 10m E. L. Hancock 



38. Waterproofing Mixtures for Concrete, 5m W. K. Hatt 



*39. Contributions to Knowledge of Vehicle Woods, 10m W. K. Hatt 



39a. The X Ray, 10m G. P. Hetherington 



*39b. On Certain Demonstration Apparatus for Alternating Currents, 10m C. P. Mathews 



BOTANY. 



*40. Notes upon the Rate of Tree Growth in Glacial Soils of Northern Indiana, 15m Stanley Coulter 



41. The Michillinda (Michigan) Sand Dunes and their Flora, 10m Stanley Coulter 



*42. A List of .-^Igae, lOni Frank M. ."Andrews 



*43. Some Monstrosities in Plants, 10m Frank M. Andrews 



44. How Plant Rusts Live over Winter, 10m J. C. Arthur 



*45. Parasitic Plant Diseases Reported for Indiana, 10m Frank D. Kern 



*46. Notes on Occurrence of Sclerotinia fructigena, 10m Frank D. Kern 



47. Additions to the Indiana Flora No. 3, 3m Chas. C. Deam 



48. The Hymenomycetes of Indiana, 10m Donald Reddick 



49. Comparison of Primary and Secondary Structures of Some Woods, 15m Katherine Golden Bitting 



ZOOLOGY. 



•50. The Lummi Indians, 10m Albert B. Reagan 



51. The Mammals and Reptiles of the Rosebud Indian Agency, 10m Albert B. Reagan 



*52. A Crow Roost near Remington, Indiana, 5m Fred J. Breeze 



53. Fauna of the Grand Summit Section of Kansas and Remarks on the Development of Derbya 



Multistriata, Meek and Hayden, 15m F. C. Greene 



54. The Mammalian Remains of the Donaldson Cave, 10m Walter L. Hahn 



55. Birds of Northwestern Indiana, 10m Henry Link 



*56. Notes on Indiana Birds, 10m A. W. Butler 



57. Some Internal Factors Controlling the Rate of Regeneration, 10m Charles Zeleny 



*58. The ReactioDs of the Blind Fish, Amblyopsis spelaens, to Light, 10m Ferd Payne 



*59. Observations on the Formation and Enlargement of the Tube of the Marine .\nnelid, Chaet- 



opterus variopedatus, 10m H. E. Enders 



*60. Notes on the .Artificial Fertilization of the Eggs of the common Clam, Venus mercenaria, 5m. .H. E. Fenders 

 *61. Some Observations on Ferment-activity in Unfertilized and Fertilized Eggs of Sea Urchins 



and Star Fish, 15m 0. P. Terry 



62. Blood Pressure in Man, 10m G. E. Hoffman 



*62a. The Sense of Sight in Spiders, 15m .Alexander Petrunkevitch 



GEOLOGY. 



*63. Evidence of a Local Uncomformity of Considerable Extent in the Pennsylvanian Rocks of 



Southern Indiana, 15m A. W. Thompson 



64. Summary of Glacial Literature Relating to Glacial Deposit, 10m .Albert B. Reagan 



♦Papers marked with a star were read. 



