EIGHTH REPORT 
OF 
THE MICHIGAN ACADEMY OF SCIENCE 
CONTAINING AN ACCOUNT OF THE ANNUAL MEETING 
HELD AT 
ANN ARBOR, MARCH 29, 30 AND 31, 1906. 
PREPARED UNDER THE DIRECTION OF THE 
COUNCIL 
BY 
E. E. BOGUE 
SECRETARY 
AND 
WALTER G. SACKETT 
ASSISTANT SECRETARY 
BY AUTHORITY 
'W* 
