(Sra\> Iberbanum 
B. L. ROBINSON, 
Prof. Syst. Bot. and Curator 
C. G. PRINGLE, Collector 
M. L. FERNALD, Assistant Professor 
MARY A. DAY, Librarian. 
Ibarvarb TUmverstbp 
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CAMBRIDGE, MASSACHUSETTS, U. S. A. 
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