LETTER OF TRANSMITTAL. 
Des Moines^ Iowa^ July 20, 1909. 
To His Excellency, Beryl F. Carroll, 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-third annual session of the Iowa Academy of Science and request 
that you order the same to be printed. 
Respectfully submitted, 
L. S. Ross, 
Secretary Iowa Academy of Science. 
