Thirtieth Annual Meeting 147 
20. Observations on the Edge of the Forest in the Katmai District. 15 min. 
(UILEITRET Senos Setnels aCe GE aUES AUC omen anes RoBeErT F. GriIGGs 
21. The Influence of Environment on Sexual Expression in the Hemp. 10 min. 
J. H. SCHAFFNER 
27, Ay Double Mutant of the Hemp. 5 miin......5...5.0..05000-> J. H. SCHAFFNER 
23. Translocation and Storage of Carbohydrates in Apple Fruit Spurs and 
Two-year-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 Cornus Pubescence. 15 min. 
COACHES’ DFOICCHION) oss ey wesc Ota e ee se waten SWARNA KUMER MITRA 
26. Story of Citrus Fruits of Pinellas County, Florida. 5 min.............. 
KATHARINE Doors SHARP 
we Pactors, Controllins Dranspiration:. .—as--..--..-..s-4.<- 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. WITHROW 
381. Some Farm Experiments in the Making of Syrup from Sugar Beets. 10 min. 
33. 
34, 
F. C. VILBRANDT 
. 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. WITHROW 
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. 
(c) The Determination of Water in Substances Easily Decomposable 
Thermally. 
JAMEs R. WITHROW 
Gas Combustion Investigations. 10 min. 
(a) Quartz-apparatus. 
(b) Central Burner Type. 
(c) Devitrification of Quartz in Capillaries. 
F. C. VILBRANDT 
. The Thermionic Tube as a Useful Amplifying Tool of the Scientist. 20 
TOT AS SE Sets eh ee NS Geeta OMAR eo cE AE Ee See ale aa RE ARO) Bt Cone 
. A Seasonal Breakage of Watch Springs and Its Cause. 10 min........... 
SAMUEL R. WILLIAMS 
SESpLNos On Manimtim «Weights 20)mitive one sc. o..casce ocean ae Ee ©. corp 
. Relations between Atomic Numbers and the Wave Lengths of X-rays. 
10) Seatials eee hes SS 2 ose Oe Mien S Rls CE Om aa ec S. J. M. ALLEN 
. Relations between Absorption Coefficients and Wave Lengths of X-rays. 
li()): Tanita la sa aoe a eg CERO OBIS Dae Oba OS cS Se errs oe S. J. M. ALLEN 
Characteristic Curves of Different Types of Thermionic Tubes. 15 min. 
A. D. CoLe 
» Wngrnvoehwreheaiery. 0 mabhhaaa gn Sos code an Ee nee ace oon one Louris T. MORE 
Poeleetmication by lmpact. 10min... 2.0.02 0c5 we ee eee HAROLD RICHARDS 
. On Self and Mutual Elastance and Capacitance. 15 min........ F. C. BLAKE 
. Note ona Double Solenoid for the Production of Uniform Magnetic Fields. 
S. J. BARNETT 
