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The Natural Vegetation Of The Lower Rio Grande Valley Of Texas
Edwin J. Foscue

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The Tilt Of The Earth's Axis And The Consequences Thereof
John D. Boon

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The True Clovers (Trifolium) Of Texas
Joe F. Hennen

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Men of Science in Texas, 1820-1880
S. W. Geiser

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Horizon Angle and Its Relation To the Altitude of the Observer
John D. Boon Sr.

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Dr. Ernst Kapp, Early Geographer In Texas
S. W. Geiser

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Men of Science in Texas, 1820-1880: V
S. W. Geiser

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A Rapid Volumetric Analysis for Carbonate in Rocks
Eugene Herrin, H. Sterling Hicks, and Herbert Robertson

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The Vetches And Pea Vines (Vicia And Lathyrus) Of Texas
Lloyd H. Shinners

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Dinosaur Tracks Near Comanche, Texas
Claude C. Albritton Jr.