■'Urn M ^a A^fcai 



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A Magrazine of General Botany 



VOLUME 17 

 N U M B E K 2 

 FEBBUABY 1914 





CONTAINING 



The Seasonal Life-Cycle of Some Red Algae at Woods Hole 



By I. F. Lewis 31 



Phytogeographlcal Notes on the Coastal Plain of Arkansas 



By Roland M. Harper 36 



Notes on the Technique of the Detennination of the Depression of the 

 Freezing Point of Vegetable Saps 

 By Ross Aiken Gortner and J. Arthur Harris 49 



Books and Current Literature 54 



Notes and Comment 56 



PUBLISHED MONTHLY 



OFFICE OF PUBLICATION 



241»-21 York Road 



baltimore, md. 



EDITORIAL OFFICE 



TUCSON, ARIZONA 



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Entered as second-claes matter March 9, 1912, at the post office at Baltimore, Maryland, under the Act of July 16, 1894 



