LETTER OF TRANt^MITTAL. 



To Hon. Fred M. Warner, Gorenior of the State of Michigan: 



Sir — I have the honor to submit herewith tlie Twelfth Annual Eeport 

 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, 



GEO. D. SHAFER, 

 Secretary of the Michigan Academy of Science. 

 E. Lansing, Mich. May, 1910. 



