288 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Spaulding, V. M., 1909. Distribution and Movements of Desert Plants. 



Stevens, W. C, 1910. Plant Anatomy. 



Strasburger, Noll, Schenck, and Schimper, 1898. A Textbook of 



Botany. 

 Van Dyke, H. C, 1904. The Desert. 

 Whitney, J. D., 1880. Geol. Survey of Cal., Bot. Sec. 



