PROCEEDINGS OF THE OHIO ACADEMY OF SCIENCE. 173 



36. The Cranial Xerves of an Embryo Shark, l-j min. F. L. Landacre 



37. Myxomycetes of Northern Ohio. 5 min. E. L. FuUmer 



38. The Eorest Types of the Ohio Quadrangle. 8 min. 



Forest B. H. Brown 



39. New and Rare Plants Added to the Ohio List in 1914. ."i min. 



John H. Schaffner 



40. A Provisional Arrangement of the .Ascomycetes of Ohio. 10 min. 



Bruce Fink 



41. The Collemaceae of Ohio, l-j min. (Lantern.) Bruce Fink 



42. Notes on Ohio Higher Fungi. 5 min. Wilmer G. Stover 



43. The Leaf Mold Disease of Tomato (Cladosporium fulvum). 10 



min. Wilmer G. Stover 



44. Summit County Marl. 3 min. Chas. P. Fox 



45. History of the Olentangy River Below Delaware, Ohio. 15 min. 



L. G. Westgate 



40. Tlie Physiography of Mexico. 15 min. Warren X. Thayer 



41. X'otes on Some Richmond Fossils. 10 min. (Lantrrn.) 



W. H. Shideler 



48. The Classification of the X'iagaran Formations of Western Ohio. 



lo min. Charles S. Prosser 



49. The Defiance Moraine in Relation to Pro-Glacial Lakes. 10 min. 



(Lantern.) Frank Carney 



50. Some of Dr. H. Herzer's Last Fossil Descriptions. 5 min. 



W. N. Speckman 



51. On the Origin of Oolite. Hi min. (Lantern.) Walter N. Bucher 



52. Magnetic Rays. 20 min. (To be followed by discussion.) 



L. T. Moore 



53. On the Free Vibration of a Lecher System. 10 min. 



F. C. Blake and Charles Sheard 



54. Measurements of the Magnetic Field. 1(» min. (Lantern.) 



Samuel R. Williams 



55. On the Radioactive Deposit from the Atmosphere on an Uncharged 



Wire. 10 min. S. M. J. Alleoi 



56. Demonstration of Simple Harmonic Motion on Rotation Apparatus. 



5 min. Charles Sheard 



Deinonstrations 



1. A Nematode Parasite of Cryptobranchus. F. H. Krecker 



2. Cross Sections Illustrating Rate of Tree Growth. 



William R. Lazenby 



3. Varieties of Domestic Guinea Pigs. 



Tailless Cat. W. M. Barrows 



4. Orthoptera not Hitherto Recorded from Ohio. W. J. Kostir 



5. A Scale of Ohio Forest Types to Indicate the Fertility of Soil for 



Agricultural Crops. Forest B. H. Brown 



6. Photographs of Leaf Hoppers and Frog Hoppers. Herbert Osborn 



