NOTES AND COMMENT 71 



Epiiraim Laurence Palmer. Study of American weeds with keys to their 

 seeds and fruits. 

 V DoAK Bain Carrick. Resistance of roots of some fruit species to low tempera- 

 tures. 



Eugene Peyton Deatrick. Effect of manganese compounds on soils and 

 plants. 



Gertrude Elizabeth Douglas. Study of the development in the family 

 Agaricaceae. 



David Stout Jennings. Effect of certain colloidal substances upon the growth 

 of wheat seedlings. 



George Washington University 



Leonard Lee Harter. The pod blight disease of the lima bean (Phaseol'us 



Lunatus), caused by Diaporthe Phaseolorum C. & E. 

 John William Roberts. The source of apple bitter-rot in ections. 

 I- Arthur William Sampson. Climatic conditions as related to plant growth 



and other physiological activities. 



Harvard University 



Sidney Fay Blake. A revision of the genus Viguiera. 



Charles Drechsler. Studies on the genus Actinomyces, with special reference 

 to its development and morphology. 



Johns Hopkins University 



f Edward Elway Free. The oxygen requirement of plant roots in relation to 



soil aeration. 

 y^ Frank Merrill Hildebrandt. A physiological study of the climatic condi- 

 tions of Maryland as measured by plant growth. 

 j/Earl Steinford Johnston. The seasonal march of climatic conditions in a 

 greenhouse, as related to plant growth. 

 William Edward ToTtingham. A preliminary study of the influence of chlo- 

 rides upon the growth of certain cultivated plants. 

 Sam Farlow Trelease. The relation of salt proportions and concentration to 

 the growth of young wheat plants in nutrient solutions containing a chloride. 



Indiana University 



Mildred Nothnagel. Fecundation and the formation of the primary endosperm 

 nucleus in certain Liliaceae. 



University of California 



Robert Clinton Rhodes. Binary fission in Collodictyon triciliatum Carter. 

 v' Selman Abraham Waksman. Studies on proteolytic activities of soil micro- 

 organisms, with special reference to fungi. 



University of Chicago 



Arthur Laurence Bakke. Studies upon the determination of wilting by the 



use of standardized hygrometric paper. 

 John Theodore Buchholz. The suspensor and early embryo of Pinus. 



