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Proceedings of the South Dakota Academy of Science, Volume - 19, Year - 1939. |
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TABLE OF CONTENTS |
AUTHOR NAME |
PAGE |
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Twenty-fourth Annual Meeting |
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4 |
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Business Session |
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5 |
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Program |
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8 |
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Teaching Techniques in the Light of New Demands Made Upon Science - Presidential Address. |
Ward L.Miller |
11 |
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The Adsorption of Selenium by Certain Inorganic Colloids. |
Oscar E. Olson |
22 |
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The Effect of Low Concentration of Selenium Upon the Growth of Grain. |
George W. Stanford and Oscar E.Olson |
25 |
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The Problem of Buffering Fermentation Media. |
A. R. Kendall |
32 |
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Productivity of Plants Grown from Seeds Soaked in Water. |
H. Clyde Eyster |
44 |
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Some Systematic Implications of the Concept of Threshold. |
H. R. Fossler |
47 |
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The Concentration of Vitamin D in the Blood of Dairy Cattle as Compared with the Potency of the Milk Produced. |
G. C. Wallis |
55 |
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The Cretaceous Overlap in Southeastern South Dakota. |
E P. Rothrock |
61 |
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The Selenium Content of Grasshoppers Found Feeding on Seleniferous Vegetation. |
Alvin L. Moxon |
69 |
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The Effect of Glutathione on Selenium Toxicity. |
Kenneth P.DuBois, Morris Rhian, and Alvin L. Moxon |
71 |
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Further Investigation of the Gamma Rays from Cadmium Under Slow Neutron Bombardment. |
W. H.Jordan |
75 |
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Thirty Years of Soil Fertility Investigations in South Dakota. |
J. Gladden Hutton |
77 |
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A Physiological Comparison of Virgin and Cultivated Soils in Southeastern South Dakota. |
James Russel Hurt and H. Clyde Eyster |
82 |
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Some Unexpected Species of Arthropoda Found in South Dakota. |
H. C. Severin |
86 |
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A Study of the Green Pigments in the Lotus Embryo. |
Robert Stewart and H. Clyde Eyster |
89 |
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Linkage on the Sex Chromosome of Habrobracon. |
Magnhild Page Torvick Greb and Raymond J. Greb |
92 |
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A Previously Undescribed Euglenoid Form. |
Dallas Meyer and Edw. P. Churchill |
96 |
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A Comparative Study of Liver Glycogen Values of Control Selenium, and Selenium-Arsenic Rats. |
Richard L.Potter, Kenneth P. DuBois, and Alvin L. Moxon |
99 |
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Erosion of Water Plants. |
Howard C. Abbott |
107 |
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The Effect of Selenium and Arsenic at Various Ratios on the Fermentation of Glucose by Baker's Yeast. |
Henry A. Lardy and Alvin L. Moxon |
109 |
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The Chlorination of Carbon Chains. |
Max I. Bowman |
112 |
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An Adaptation of the Bodansky Method for Phosphorus to the Photoelectric Colorimeter. |
Morris Rhian |
115 |
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A Method of Preparing Cartilage Skeletons. |
John F.Tannheimer |
118 |
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Preparation of Higher Alcohols by the Grignard Method. |
Victor S. Webster and Arnold E. Schaefer |
124 |
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Preliminary Report of the Chemistry of Gum Ghatti. |
Delbert Hanna, Leo McReynolds and Edwin H. Shaw, Jr. |
130 |