The University of the. State of New York 



Science Department, November 30, 



Colonel John H. Finley 



President of the University 



MY DEAR SIR : I beg to transmit to you herewith and to recom- 

 mend for immediate printing, as a Bulletin of the State Museum, a 

 manuscript entitled " High-grade Silica Materials for Glass, Refrac- 

 tories and Abrasives/' which has been prepared, at my request, by 

 Mr R. J. Colony. 



It is believed that this report meets a widespread demand for 

 information as to the New York supplies of these materials. 



Very respectfully yours 



JOHN M. CLARKE 



Director 



Approved for publication this 8th day of January, /pip 



Acting President of the University 



