Presidential Address

The Oklahoma Academy of Science and Education Today

Roy W. Jones

1-10

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Biological Sciences

Sunlight in Oklahoma as an Important Factor in the Prevention of Rickets and the Maintenance of Normal Calcium and Phosphorus Metabolism

Willis D. Gallup

11-15

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A Corrected List of the Amphibia Known in Central Oklahoma

Arthur N. Bragg

16-17

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A Key to the Frogs of the Genus Rana in Oklahoma (by title)

Arthur N. Bragg

18

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Preliminary Records of Physico-Chemical Features of Grand Lake, Oklahoma

William H. Irwin

19-23

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A Preliminary Report on the Ellis County Skull

T. C. Carter

24-26

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The Effect of Sunshine upon the Antirachitic Potency of Butter

Gladys Bray Berry

27-30

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Biotic Type Mapping of Oklahoma Watersheds

Ben Osborn

31-34

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Electrical Conductivities of Sorghum Juices in Relation to Chinch Bug Injury

J. E. Webster

35-37

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A Report on Experiments with Colchicine by Lay Scientists, 1941

Barbara Tenney

38-40

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The Effect of Artificial Light on Reproduction in Poultry, with Special Reference to Turkeys

T. T. Milby

41-44

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The Insect Pest Record for Oklahoma, 1941

F. A. Fenton

45-51

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The Incidence of Tuberculosis Among University of Oklahoma Medical Students and University Hospital Nurses

H. D. Moor

52

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Notes on the Numerical Status and Migration of the Birds of the Lake Carl Blackwell Project in North Central Oklahoma

F. M. Baumgartner

53-64

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Nitrogen and Carotene Partition in the Alfalfa Plant

V. G. Heller

65-67

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The Use of Arsenicals for the Control of Housefly Larvae

D. E. Howell

68-72

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Observation on the Ecology and Natural History of Anura XI. The Invasion of the Canadian River Flood Plain by Two Prairie Species

Arthur N. Bragg

73-74

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Mammals of Payne County, Oklahoma

Robert R. Schendel

75-76

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Notes on the Herpetology of Payne County

George A. Moore

77-80

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The Tapeworms of Reptiles. Part III.

R. Chester Hughes

81-89

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The Trematodes of Reptiles. Part III, Conclusion

R. Chester Hughes

90-114

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The Use of Colchicine in Determining the Origin of Foliar Organs in the Wheat Embryo

Marcelotte Leake

115

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A Comparative Study of the Williams-Olmsted and Davis-Miller Methods for the determination of Lignin in Plant Tissues

Donald Hood

116-119

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The Induction of Polyploidy in Phlox by Colchicine

O. J. Eigsti

120-122

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Revegetation of Coal Stripped Land near Henryetta, Oklahoma

Sister M. Marian Maloney

123-129

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Cercis, Its Taxonomic Relationship in the Oklahoma Flora

Milton Hopkins

130-131

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An Improved Method of Studying Pollen Tubes Through the Preparation of Permanent Stylar Whole Mounts

Frank A. Rinehart

132-133

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The Occurrence of a Pollen Tube with Four Sperms and Two Tube Nuclei in Polygonatum

O. J. Eigsti

134-136

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A Physiological Study of Diploid and Related Tetraploid Plants

Herbert Taylor

137-138

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A Preliminary Report on the Effects of Colchicine on Bacteria

Glenn E. Pottz

139-141

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Cadaver Anatomy Versus X-Ray Anatomy as Exemplified in the Thorax

Ernest Lachman

142

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The Determination of Thallium in Biological Fluids and Tissues

Clark Ice

143

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Geological Sciences

The Origin of Spits, Bars, and Related Structures

O. F. Evans

144

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The Relation Between the Size of Wave-Formed Ripple Marks, Depth of Water, and Size of Generating Waves

O. F. Evans

145-146

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Orogenic Development of the Cedar Hills, Utah

Stuart L. Schoff

147

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Research Materials Available in the Geological Library

A. G. Skelton

148-149

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The Passing of a Great Geologist--Robert T. Hill

Chas. N. Gould

150-151

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Subsurface Structures of Central Louisiana

Mary Lynn Westervelt

152

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Arbuckle Formations in the Ouachita Mountain Region

Charles E. Decker

153-155

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Physical Sciences

Some New Color Reactions of Creatinine

Irvin S. Danielson

156-159

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Some New Addition Compounds of Polynitrophenols

O. C. Dermer

160-162

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Volatile Essential Oil from Mexican Sage, Artemisia mexicana

A. C. Shead

163

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Profile Angles of Ethylene Diamine Picrate and Its Homologs

A. C. Shead

164

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Social Sciences

Using the Opinions of Many People in Policy Building

Ernest E. Brown

165

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Three-Fold Function of Religious Bodies

Charles M. Perry

166-167

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The Early Granger Movement in the Southwest

Ralph Smith

168-170

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The Sequatchie Valley, Tennessee--A Study in Land Utilization

Robert L. Martin

171

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Educational Problems Growing out of Migratory Population Movements

Lester A. Kirkendall

172-173

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Memorials Prepared by the Committee on Necrology

197

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We Can Know When a Child is Ready to Read

Harriet Seay Binion

174-177

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Ophthalmic Scoliosis

Charles E. Thompson

178-180

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The Reliability and Validity of the Public School Attainment Tests for High School Entrance

Roland L. Beck

181-184

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Population Changes in the Greater Seminole Area, 1920-1940

John W. Morris

185-188

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Family Mobility to and from Tulsa, 1939-1941

John Ben Holland

189-191

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A Comparison Between the Upper and Lower Income Groups in Their Attitudes Toward Relief Policies

Leo A. Haak

192-194

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A Statistical Delimitation of Land-Use Regions in Oklahoma

Allen Belden

195

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Economic Aspects of Hail in Northern North America

Hoyt Lemons

196

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