CONTENTS 
Page 
BROWN, W. H. The Relation of the Substratum to the Growth 
of Elodea ^ 1 
BROWN, W. H.j and GRAFF, P. W. Factors Influencing Fungus 
Succession on Dung Cultures 21 
MERRIDL, E. D. Studies on Philippine Rubiaceae, I...,. ^.... 31 
u. s. 
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