32 ■ The Ohio Journal of Science [Vol. XVIII, No. 1, 



38. Intraformalional Pebbles of the Ordovician and Silurian Formations of 



Ohio. 10 min Aug. F. Foerste 



39. Conditions of Deposition in Devonian and Penn.sylvania Times. 10 min. 



Lewis G. Westg,\te 



40. The Weathering of Wisconsin Gravels in the Little Miami Valley near 



Cincinnati, Ohio. 10 min Walter H. Bucher 



41. Some More of the Saluda Question. 10 min W. H. Shideler 



42. Lake Abram. 3 min. (Opaque Projection) Wesley N. Speckman 



43. Concretionary Forms in Greenfield Limestone. 10 min C. W. Napper 



44. Natural Gas in Ohio. 10 min John Bownocker 



45. The Radioactivity of Smoke. 10 min S. J. M. Allen 



46. Physical Factors concerned in the Measurement of Blood Pressure. 



15 min. (Lantern) Clyde Brooks 



47. The Inheritance of Spotting in Dutch Rabbits. 20 min. (Lantern). 



H. D. Fish 



48. Unconformity between the Mississippian and Pennsylvanian in the 



Grand River at Parkman, Ohio. 10 min Geo. H. Colton 



Demonstrations 



1. A Freak Leptinotarsa decemlineata C. L. Metcalf 



2. Mudballs and Pebbles from the Ordovician Rocks of the Vicinity of 



Cincinnati, illustrating Paper 37 Walter H. Bucher 



3. Pictures and Specimens to illustrate Paper 40, on the Weathering of 



Wisconsin Gravels Walter H. Bucher 



Lewis G. Westgate, 



Acting Secy during Meeting, 



Edward L. Rice, 



Secretary. 



Date of Publication, November 30, 1917. 



