LIST OP MEMBERS 107 



Riddle, Oscar, Ph. D., Cold Spring Harbor, Long Island, New York. 



Roberts, H. L., State Normal School, Cape Girardeau. Mo. (Geogra- 

 phy.) 



Ross, Clarence S., A. M., U. S. Geological Survey, Washington. D. C. 

 (Geology.) 



Sampson, H. C, Ph. D., Ohio State University, Columbus, Ohio. 



Van Tuyl, Francis M., Ph. D., Colorado School of Mines, Boulder, Colo. 

 ( Geology. ) 



Weber, H. C. P., Ph. D., Westinghouse Electric Co., Pittsubrgh. Pa. 

 (Chemistry.) 

 ♦Zetek, James. A. M., Box 245, Ancon, Panama Canal Zone. ( Entomology. » 



