TABLE OF CONTENTS. 



I. Introductory: 



Historical Sketch ""'"^ 



Constitution and By-Laws 



Past Presidents 



9 



Officers of the Academy, 1915 



Membership of the Academy 



Minutes of the Forty-seventh Annual Meeting I5 



Address of the Retiring President 



II. xMathematical and Geological Papers: 



1. A Probable Origin of the Rings of Saturn. Albert B. Reagan 43 



2. The Marine Tertiary Stratigraphy of the North Pacific Coast 



of North America-A Review. Albert B. Reagan 47 



3. Deep Wells at Elmdale. Alva J. Smith 50 



4. Kaw Valley Anticline. E. C. Warfel 53 



5. The Chert Gravels of Eastern Kansas. L. C. Wooster 

 III. Physical and Chemical Papers: 



58 



2. Heating Values of Natural Gases of the Midcontinental Field 



n. I . AUeri 



3. Corn Oil. L. E. Sayre 



4. Municipal Illumination. J. A. G. Shirk 



o. 



65 



71 

 74 

 76 



A Study of the Gelatinizing Agents, Pasty Materials and 

 Thickeners Used m Food Products. Leon A. Congdon. . . . 81 



6. The Loss of Nitrogen and Organic Matter in Cultivated 



Kansas Soils. C. O. Swanson cultivated 



7. The Determination of Sulphates in Water. \f W Brurk 



miller orucK 



8. The Quantitative Separation of Quinine and Strychnine 



ij. .\ . \\ atson 



^. The Composition and Properties of the Yucca Plant O 4 

 nealh • . .-1 . 



10 



87 



97 



99 



102 



105 



108 

 n of Medicinal Plants in the United States to 

 Emergency Caused by the Euronpan r«„fl;„. r 

 E. Sayre 



Muscale Buttons. L. E. Sayre and A . E. Stevenson . . ] 05 



11. Prunella vulgarise. L. E. Sayre 



12. Cultivation of Medicinal Plants in the United States to 

 fV,.':"^ Emergency Caused by the European Conflict. L. 



110 

 (3) 



