TRANSACTIONS 
OF THE 
TEXAS ACADEMY OF SCIENCE 
FOR 1901. 
THE RED SANDSTONE OF THE DIABOLO 
MOUNTAINS, TEXAS. 
CRETACEOUS AND LATER ROCKS OF PRESIDIO 
AND BREWSTER COUNTIES. 
E. T. DUMBLE, 
Houston, Texas. 
VOLUME IV, PART II, NOS. 6-7. 
AUSTIN, TEXAS, U. 8. A. : 
PUBLISHED BY THE ACADEMY 
