Notes and Comment. 253 



affected by Soils, by Solutions of Different Densities, and by Various 

 Chemical Compounds. ' ' (Cornell). 



Harold Joel Conn; A Study of Seasonal Variation among the Bacteria 

 in Two Soil Plats of Unequal Fertility." (Cornell). 



Hing Kwai Fung: "An Ecological Study of the American Cotton 

 Plant with Incidental Reference to its possible Adaptability in China." 

 (Cornell). 



Lewis Knudson: "The Relation of Aspergillus niger and Penicillium 

 sp. to Tannic Acid Fermentation. ' ' (Cornell). 



John Pogue Stewart: "Factors Influencing Yield, Color, Size, and 

 Growth in Apples." Cornell). 



Frederick Adolph Wolf: "The Life History and Development of a 

 some Fungi." Cornell). 



Robert Fiske Griggs:" The Development and Cytology oi Rhodochy- 

 trium. ' ' (Harvard). 



Alban Stewart: "A Botanical Survey of the Galapagos Islands." 

 (Harvard). 



William Ralph Jones: "The Development of the Vascular Structure 

 of Dianthera Americana L." (Johns Hopkins). 



Harlan Harvey York: "The Origin and Development of the Embryo- 

 sac and Embryo of Dendropthera opuntiodes (L) Eicli. and D. gracile 

 Eich." (Johns Hopkins.) 



Neil Everett Stevens: "The Meitoic Phase in Heterostylous Plants." 

 (Yale). 



Frederick McAllister: "The Cytology (i Coavallariaceae. " (Wis- 

 consin). 



William Alderman Matheny: "Biology of Sclerotinia jructigena 

 and Sclerotinia cinera." (Clark). 



Walter Byron Gernert: "Unit Characters in Corn and their Behavior 

 in Transmission." (Illinois). 



Louis John Gillespie: "The Gas Metabolism of the Colon and Ty- 

 phoid Bacilli." (Brown.) 



Eugene Clarence Howe: "A Biometric Investigation of certian Non- 

 spore-forming Intestinal Bacilli." (Mass. Inst. Tech.) 



Leonard Dixon Haigh: "A Study of the Variations in Chemical 

 Composition of the Timothy and Wheat Plants during Growth and 

 Ripening." (Missouri.) 



Caroline Rumbold: "The effect of the a idity and Alkalinity of the 

 Substratum on the Growth of Wood-destroying and Wood-staining Fungi, 

 with a discussion of the Systemiatc Relation of Ceratostomella and Graph- 

 turn." (Washington). 



Otto E. Jennings: "The Mosses of Western Pennsylvania." (Pitts- 

 burg.) 



Sevenof the twenty are almost purely taxonomic, nine are 

 of a definite morphological character, two are ecological and 

 two physiological. Very few botanists could be found who 



