

Botanical 



(3asette 



Edited by John M. Coulter, with the assistance of other members of the botanical staff of the 



University of Chicago. 



Issued September 15, 1914 



Vol. Lvin 



CONTENTS FOR SEPTEMBER J9J4 



No. 3 



APOR 



ASSOCIATIONS. Contributions *rom the Hull Botaxi vl Laboratory 191 (with 



twenty-seven FIGURES). George Damon Fuller -------- 



VGUS-PARASITES OF LIVIXG INSECTS (with plates 



ON CERTAIN 



FD 



xvi-xix). Roland Thaxkr - - - - - ■ - 



THERMOTROPISM OF ROOTS. Contributions from the Hull Botanical Laboratory 



192 (with six figures). Sophia Eckersen --------- 



OOGENESIS IX HORMOSIRA. Contributions from the Hull Botanical Laboratory 193 



(with plate xx and sevex figures). M. R. Geiman ------- 



- 



THE MEASUREMENT OF ANTAGONISM (with three figures). W. J. V. Oslerhout 



FIELD NOTES ON THE CLIMBING BAMBOOS OF PORTO RICO (with plate xxr). 



Agnes Chase --------------- 



CURREXT LITERATURE 



NOTES FOR STUDEXTS ------- 



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