NOTES AND COMMENT 



An inspection of the list of doctorates conferred by American Uni- 

 versities in 1913 shows that thirty-eight of these are of interest to bo- 

 tanical science, although but twenty-seven are credited to Botany by 

 the editor of Science (Science : 38 : 259. 1913). The larger total is the 

 same as the number of 1912, although the total number of degrees in 

 the exact and natural sciences fell from 273 to 231 from 1912 to 1913. 

 This total is taken to include the following, although it is obviously 

 impossible to make an exact classification without further information 

 than that conveyed by the bare catalogue : 



Cornell University 

 Adeline Sarah Ames: Studies in the Polyporaceae. 



Maxwell Jay Dorset: Pollen Development in Vitis with Special Refer- 

 ence to Sterility. 



Mary Alida Fitch: Studies in Transpiration. 



Harry Morton Fitzpatrick: A Comparative Study of the Development 

 of the Fruit Body in Phallogaster, Hysterangium and Gautieria. 



Margaret Graham: Studies in Nuclear Division of Preissia commutaia. 



Bascombe Britt Higgins: A Contribution to the Life History and Physiol- 

 ogy of Cylindrosporium on Stone Fruits. 



George Richard -Hill, Jr.: The Relation of Ripe and Unripe Fruits and 

 Germinating Seeds to Air. 



Tanomo Odaira: A Study of Heredity and Variation in Pure Lines and in 

 Hybrids of Phaseolus vulgaris. 



Martin John Prucha: Can the Efficiency of Bacillus radicicola in producing 

 Nodules on the Legumes be altered? 



Fred M. Rolfs: A Bacterial Disease of the Stone Fruits due to Bacterium 

 pruni E. F. S. 



Vern Bonham Stewart: The Fire Blight Disease in Nursery Stock. 

 Roland Elisha Stone: The Life History of Ascochyta on some Leguminous 

 Plants. 



Columbia University 

 Michael Levine: Studies in the Cytology of the Hymenomycetes, especially 

 the Boleti. 



Arlow Burdette Stout: The Individuality of the Chromosomes and their 

 Serial Arrangement in Carex aquatilis. 



Johns Hopkins University 

 Harvey Bassler: Filicales and Pteridospermae of the Monongahela Forma- 

 tions of Maryland, including certain Forms from Similar Formations in Pennsyl- 

 vania. 



350 



