m 



University of Texas Bulletin 



No. 1821: April 10, 1918 



/2 



See 



^Fossil Ice Crystals 



An Instance of the Practical Value of 

 "Pure Science" 



Bureau of Economic Geology and Technology 



Division of Ek:ononiic Geology 



J. A. Udden, Director of the Bureau and Head of the Division 



Published by the University six times a month and entered 

 aecond-class matter at the postoffice at 

 AUSTIN, TEXAS 



