Proceedings of the Ohio State Academy of Science 437 



25 The Mississippian Pennsylvanian Unconformity and the Sha- 

 ron Conglomerate in Northern Ohio. 10 min. G. F. Lamb 

 2() Some Large Masses of Rock in the Drift. 7 min. 



G. D. Hubbard 



27 The Olfactory Nerve mChrysemys marginata. 5 min. 



Albert Meyers (Introduced by Charles Brookoverj 



28 The Placodal Ganglia of Lepidosteus. 7 min. F. L. Landacre 



29 Leaf Markings of Certain Ohio Plants. 7 min. 



J. H. Schaffner 



30 Descriptions of 11 New Fossil Fishes of the Corniferous 



Limestone. 10 min. Herman Hertzer 



31 The Succession of Vegetation Groups of Ohio Lakes and 



Ponds. 5 min. Alfred Dachnowski 



32 A Disease of Pinus strobus due to Cenangium abietis. 7 min. 



Bruce Fink 



33 Keeping Quality of Apples. 7 min. W. R. Lazenby 

 3-1 New and Rare Ohio Plants Added to the State Herbarium 



in 1910. 5 min. J. H. Schafifner 



35 Physical and Chemical Substratum Factors of Cranberry 



Island. 3 rain. Alfred Dachnowski 



36 Observations on Protosiphon botryoides (Kutz.) (Lantern 



slides.) 5 min. M. E. Stickney 



37 The Classification of the Fresh Water Oligochaeta with 



Tables of Genera, Species, etc. 5 min. L. B. Walton 



38 Demonstration of Color Photography by the Lantern. 



Paul Biefield 



L. B. Walton, Secretary. 

 Gambier, Ohio. August 1, 1911. 



