LETTER OF TRANSMITTAL. 
Des Moines, Iowa, July 1, 1913. 
To His Excellency, George W. Clarke, Governor of Iowa : 
In accordance with the provisions of title 2, chapter 5, section 136, 
code, 1897, I have the honor to transmit herewith the proceedings of the 
•twenty-seventh annual session of the Iowa Academy of Science and re- 
quest that yon order the same to be printed. 
Respectfully submitted, 
L. S. Ross, 
Secretary Iowa Academy of Science. 
