LETTER OF TRANSMITTAL 



To Hon. Axbert E. Sleeper, Governor of the State of Michigan: 



Sir — I have the honor to submit herewith the XXI Annual Report of the 

 Michigan Academy of Science for publication, in accordance with Section 14 of 

 Act No. 44 of the Public Acts of the Legislature of 1899. 



Respectfully, 



I. D. SCOTT, 



Secretary. 

 Ann Arbor, Michigan, June, 1919i 



