1914] Columbia University Biochemical Association 521 



anywhere in this siibject. The names of the students taking it are: 

 Louise C. Ball, Leon Loewe, Arnold Messing, Wm. A. Perlzweig 

 and G. H. Whiteford — all candidates for the M.A. or Ph.D. degree. 

 The work in progress tclates to saliva and tooth enamel, and con- 

 sists of studies of (a) reaction and turbidity of saliva, (b) tests 

 for sulfocyanate, glucose and glycogen in saliva, (c) properties of 

 sali Vary mucin, (d) effects of sugar on salivary secret?on, (e) nu- 

 tritional ( ?) changes in enamel, (f) effects of putrefa* :ive products 

 and ferric chlorid on enamel, (g) solvent action of earbon dioxid, 

 mucin, alkali phosphates and bicarbonates on tri-basic calcium phos- 

 phate. Valuable results are accumulating and will be published in 

 the Sept. issue of the Jour. of the Allied Dental Soc. 



Investigators. The workers named below have been engaged 

 in research, in the biochem. lab. at the Med. Seh., at various times 

 during the vacation : 



Louise C. Ball, Louis Berman, Robert Bersohn, O. C. Bowes, 

 William J. Gies, Frederic G. Goodridge, Hattie L. Heft, Benjamin 

 Horowitz, L J. Kligler, Arthur Knudson, Victor C. Levine, Leon 

 Loewe, Alfred P. Lothrop, Arnold Messing, Herman O. Mosenthal, 

 Sergius Morgulis, William A. Perlzweig, Louis Pine, J. Rockman, 

 Oscar M. Schloss, M. K. Thornton, William Weinberger, Charles 

 Weisman, G. H. Whiteford. 



Miscellaneous items. Prof. Gies is a member of the Advis. 

 Board of the recently oiganized Amer. Pure Food League; of the 

 Advis. Council to the N. Y. City Board of Health, and of its sub- 

 commit. on food inspection; and of the Board of Direc. of the 

 Radium Inst, of Amer. The degree of Doctor of Science was con- 

 ferred upon him by Gettysburg Coli, at the last commencement. 



Percy W. Punnett has been appointed a Univ. fellow in Chem. 

 (i9i4-'i5) ; Arthur P. Tanberg, alternate fellow in ehem.; Hubert 

 B. Goodrich, alternate fellow in zool. 



On Feb. 13, Prof. Gies addressed the N. Y. Assoc. of Biol. 

 Teachers, in Brooklyn, on Recent advances in chemical biology. 

 He was a guest and Speaker at the I5th annual dinner of the Alumni 

 Assoc. of the Coli, of Dental and Oral Surg. of N. Y., at the 

 Hotel Manhattan, on April 4; also at the ist annual dinner of the 

 Bronx Co. Dental Soc, at the Schnorer Club, on April 21. He 



