igii] William J. Gies 137 



Special Research Fund. (His promotion to an Assistant Profes- 

 sorship in Biological Chemistry occurred last spring.) 



Dr. Welker was chemist to the Board o£ Health of Allentown, 

 Pa., during the summer of 1905. He was " Chemist-in-charge of 

 the Port of Philadelphia" during the summer of 1910. He re- 

 ceived the degree of Ph.D. from Columbia University in 1908. 



Dr. Welker was one of the charter members of the American 

 Society of Biological Chemists, which was established in 1906. 



The appended summary presents a list of Dr. Welker's publi- 

 cations : 



{The asterisks helow indicate the publications from the Laboratory of Bio- 

 logical Chemistry, of Columbia University, at the College of Physicians and 

 Surgeons.) 



1905. * The influence of radium bromid on metabolism in dogs 

 (with William N. Berg). Proceedings of the Society for Experi- 

 mental Biology and Mediane, 2: 89; American Medicine, 9: 1030; Sci- 

 ence, 21: 988; Medical Nezvs, 87: 526. — Report on the city water 

 supply of Allentown, Pa. Annual Report of the Board of Health of 

 the City of Allentown, Pa., p. 14. 



1906. * Experiments to determine the influence of radium bromid 

 on protein metabolism in dogs (with William N, Berg). Proceedings 

 of the Section of Biological Chemistry of the American Chemical So- 

 ciety in affiliation with Section C of the American Association for the 

 Advancement of Science, Science, 23 : 333 and Proceedings of the 

 American Association for the Advancement of Science, 55: 327. — * On 

 the composition and toxic properties of Ibervillea Sonorae (with Julia 

 T. Emerson). Proceedings of the American Association for the Ad- 

 vancement of Science, 55 : 331 and Science, 23 : 336. — * A simple elec- 

 trica! annunciator for use in metabolism experiments and in connection 

 with filtration, distillation and similar Operations (with William J. 

 Gies). Proceedings of the Society for Experimental Biology and 

 Medicine, Z'- 77\ Science, 23 : 980; American Medicine, n. s., i : 160. — 

 * Experiments to determine the influence of the bromids of barium and 

 radium on protein metabolism in dogs (with William N. Berg). 

 Journal of Biological Chemistry, i : 371. 



1907. * On the cajse of a red coloration in the iodoform test for 

 acetone when applied to distillates from urine preserved with thymol. 

 Proceedings of the American Society of Biological Chemists, i: 36; 

 Journal of Biological Chemistry, 3 : p. xxvii. — * A f urther study of 



