Nov., 1920] Report, Ohio Academy of Science 17 



20. Observations on the Edge of the Forest in the Katmai District. 15 min. 



(Lantern) Robert F. Griggs 



21. The Influence of Environment on Sexual Expression in the Hemp. 10 min. 



J. H. SCHAFFNER 



22. A Double Mutant of the Hemp. 5 min J. H. Schaffner 



23. Translocation and Storage of Carbohydrates in Apple Fruit Spurs and 



Two-3^ear-old Seedlings. 20 min Swarna Kumer Mitra 



24. Origin and Character of Schizogenous Resin Cavities in Avocado Fruits 



and Leaves. 15 min. (Opaque projection) Swarna Kumer Mitra 



25. Origin and Character of Adventitious Roots in Comus Pubescence. 15 min. 



(Opaque projection) Swarna Kumer Mitra 



26. Story of Citrus Fruits of Pinellas County, Florida. 5 min 



Katharine Dooris Sharp 



27. Factors Controlling Transpiration Jasper D. Sayre 



28. Certain Conditions that Hinder the Study of Botany in High Schools . . 



Maximilian Braam 



29. Progress in Plant Microchemistry. 20 min H. C. Sampson 



30. Sugar Syrup from Home Grown Sugar Beets. 10 min James R. With row 



31. Some Farm Experiments in the Making of Syrup from Sugar Beets. 10 min. 



F. C. Vilbrandt 



32. Some Pertinent Questions for Ohio Scientists. 30 min. 



(a) Sulphuric Acid and Kiln Plants and their Fumes. 



(b) The Errors of Ohio's Legal Kerosene Flash Point Apparatus — the 



Foster Cup. 



(c) The Unnecessary Use of Potassium Salts. 



(d) The Damage to Science and Industry by the Wastage of Platinum. 



James R. With row 



33. Partial Solution of Certain Applied Chemical Problems. 30 min. 



(a) Saving of Platinum by the Use of Platinum Crucibles in Electro- 



analysis. 



(b) By a Modified Mercury Cathode Cell. 



(e) The Determination of Water in Substances Easily Decomposable' 



Thermally. 



James R. With row 



34. Gas Combustion Investigations. 10 min. 



(a) Quartz-apparatus. 



(b) Central Burner Type. 



(c) Devitrification of Quartz in Capillaries. 



F. C. Vilbrandt 



35. The Thermionic Tube as a Useful Amplifying Tool of the Scientist. 20 



min A. D. Cole 



36. A Seasonal Breakage of Watch Springs and Its Cause. 10 min 



Samuel R. Williams 



37. Springs of Minimum Weight. 20 min H. C. Lord 



38. Relations between Atomic Numbers and the Wave Lengths of X-ravs. 



10 min S. J. M. Allen 



39. Relations between Absorption Coefficients and Wave Lengths of X-rays. 



10 min S. J. M. Allen 



40. Characteristic Curves of Different Types of Thermionic Tubes. 15 min. 



A. D. Cole 



41. Thermodynamics. 20 min Louis T. More 



42. Electrification by Impact. 10 min Harold Richards 



43. On Self and Mutual Elastance and Capacitance. 15 min F. C. Blake 



44. Note on a Double Solenoid for the Production of Uniform Magnetic Fields. 



S. J. Barnett 



