Bulletin of the Museum of Comparative Zoölogy 
AT HARVARD COLLEGE. 
Vor. XXIX. No. 2. 
THE REACTIONS OF METRIDIUM TO FOOD AND 
OTHER SUBSTANCES. 
Bx G. H. PARKER. 
CAMBRIDGE, MASS., U. S. A.: 
PRINTED FOR THE MUSEUM. 
Manon, 1896. 
