DOCTORATES IN BIOLOGICAL CHEMISTRY 

 Conferred by American Universities, 1914-15 



The names of recent recipients of the Ph.D. degree in blochem- 

 ical science, with the subjects of the dissertations, are arranged 

 below in university groups. 



Brown University. — Ralph Gibney Huriin: Histogenesis and 

 distribution of the connective-tissue pigmentation of the silky fowl. 

 — Benjamin Samuel Levine: Rem oval of natural impurities of cot- 

 ton cloth by action of bacteria. — Courtland Sawin Mitdge: Effect 

 of sterilization on sugars in culture media. — George Hathorn Smith: 

 Parenteral digestion of bacterial protein.— ^/&^r^ Whitman Szveet: 

 Sanitary surv^ey of the Seekonk River. 



Columbia University. — Arthur Donaldson Emmett: Metabo- 

 lism studies of fatigue, rest and recuperation. — Frederick Grosvenor 

 Goodridge: Biochemical studies of mercaptan. — Edward Gray Grif- 

 fin: Inosite and pinite, and some of their derivatives. — Mildred Alhro 

 Hoge: Influence of temperature on the development of a Mendelian 

 character. — Israel Jacob Kligler: Biochemical studies and differen- 

 tiation of oral bacteria, with special reference to dental caries. — 

 Dora Estelle Neun: Examination of certain methods for the study 

 of proteolytic action. — Percy Withers Pnnnett: Study of the prod- 

 ucts of the action of different amylases. — Arthur Percival Tanberg: 

 Experiments on the amylase of Aspergillus oryzcE. — Arthur Wal- 

 dorf Spittell Thomas: Influence of certain acids and salts upon the 

 activity of malt amylase. 



Cornell University. — Miliard Alschuler Klein: Studies in the 

 drying of soils. — Leonard Amby Maynard: Fixation of nitrogen 

 by sweet clover. — James Kemp Plummer: Effect of oxygen and 

 carbon dioxid on nitrification and ammonification in soils. — William 

 Jacob Robbins: Digestion of starch by Penicillium (Camembertii). 

 — James Kennith Wilson: Physiological studies of Bacillus radi- 

 cola of soy bean {Sojus max Piper) and of factors influencing 

 nodule production. 



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