Parke, Davis & Co , 
MANUFACTURING CHEMISTS, 
DETROIT, MICHIGAN, U. S. A. 
LABORATORY AND GENERAL OFFICES : -I M<:Dougal Ave., Atwater St , 
( Joseph Campau Ave. and Guoin St. 
BRANCH 
HERBARIUM DEPARTMENT. 
H. H. RUSBY, M. 0., CURATOR. 
For Exchange — Many thousands of specimens, to which we 
are constantly adding collections from our agents in various parts of 
the world. Physicians rraking collections will do well to send us 
their lists, as we use many of the common species in exchange. 
All vegetable forms (sent in duplicate) named forthe specimens. 
All packages from foreign countries should be sent to Parke, 
Davis & Co., 6o Maiden Lane, New York City. 
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