316 The Ohio Journal of Science [Vol. XIX, No. 6, 



29. Regeneration Studies of Bryophyllum. 20 min. (Lantern). 



Charles W. McIntyre 



30. An Electric Drying Oven for Plant Presses. 5 min E. Lucy Braun 



3L Inland Associations of Algae. 20 min. (Lantern) Edgar N. Transeau 



32. The Effect of Hairy Coverings on Transpiration. 10 min. (Lantern). 



Jasper D. Sayre 



33. The Indicator Significance of Plant Associations in Crop Distribution 



in the United States. 25 min. (Lantern) Adolph Waller 



34. Vegetative Reproduction of the Pinnatifid Spleenwort. 5 min. (Lantern). 



Clara G. Mark 



35. Effect of Seed Treatment for Smut on Germination. 10 min. 



WiLMER G. Stover 



36. An Apple Root Fungous Disease. 10 min Harry W. Lutz 



37. Characteristics of the Eruption of Katmai as Indicated by its Effect 



on Vegetation. 15 min. (Lantern) Robert F. Griggs 



38. Some Land Forms of Central Southern Ohio. 10 min. . . .Lewis G. Westgate 



39. Fossils of the Greenfield (Ohio) Dolomite and Where to Find Them. 



15 min C. W. Napper 



40. Moulding Sands of Ohio. 10 min J. A. Bownocker 



41. Effects of the Wisconsin Glacier on a Portion of the Whitewater Valley 



in Indiana. 15 min W. M. Tucker 



42. Some Especially Interesting New Species of Richmond Fossils. 8 min. 



(Lantern) W. H. Shideler 



43. Effect of Transverse Magnetic Field on Some of the Physical Properties 



of Nickel Wire. 10 min A. A. Atkinson 



44. Title to be announced T. C. Mendenhall 



45. The Magnetic- Mechanical Analysis of Cast Iron. 10 min. 



Samuel R. Williams 



Demonstrations 



1. Specimens and Photographs from the Valley of Ten Thousand Smokes. 



Robert F. Griggs 



2. Specimen of a Dermoid Cyst with Teeth, loaned by Dr. H. Moore, 



Oxford Stephen R. Williams 



3. Leaf Hoppers of Hawaiian Islands Herbert Osborn 



4. One-eyed Frog (Acris gryllus) F. H. Krecker 



5. Laboratory Table Tray F. H. Krecker and W. J. Kostir 



6. Colony Forms in Marine Bryozoa Raymond C. Osburn 



7. Exhibit of Greenfield (Ohio) Dolomite Fossils C. W. Napper 



8. Two New Varieties of Acer rubrum Freda Detmers 



9. A Collection of Ohio Spiders; a Method of Exhibiting Spiders; Nest of 

 Folding-door Spider W. M. Barrows 



10. A Vaso-motor Balance Clyde Brooks, Clayton McPeek, R. J. Seymour 



11. Models of Embryonic Skull of Eumeces Edward L. Rice 



12. Sections of Nasal Capsule and Olfactory Nerves of Embryonic Eumeces. 



Edward L. Rice 



13. X-chromosomes of Branchipus vernalis R. C. Baker 



14. Origin of Cartilage from Ectoderm in the Urodeles F. L. Landacre 



Edward L. Rice, Secretary. 



