LETTER OF TRANSMITTAL. 
Ames, Iowa, December 31, 1900. 
To His Excellency , Leslie M. Shaw , Governor of Iowa: 
Sir — In accordance with the provision of title 2, chapter 
5, section 136, code 1897, I have the honor to transmit here* 
with the proceedings of the fifteenth annual session of the 
Iowa Academy of Sciences. 
Respectfully submitted, your obedient servant, 
Samuel W. Beyer, 
Secretary Iowa Academy of Sciences. 
