Th 



Plant World 



A Journal of General Botany 



VOLUME 21 

 NUMBER 5 



MAY, 1918 





-^v- 



CONTAININQ 



On the Occurrence of Pinus Banksiana in Southeastern Minnesota. C. 

 O. Rosendahl and F. K. Butters 107 



Some Factors Affecting Inulase Formation in Aspergillus Niger. V. H. 

 Young 114 



Books and Current Literature 134 



Notes and Comment : 138 



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Katerod aa aecoad-class matter March 9. 1912, at the poat office at Baltimore, Maryland, under the act of July 16, 1894 



