NUTRITION LABORATORY. 219 



holism made his visit to the laboratory of great value to us. He occupied 

 himself during the winter with an extended series of researches on the effect 

 upon metabolism of very severe muscular work. With a professional bicycle 

 rider as subject, experiments were made nearly every day throughout the 

 winter upon the character and the amounts of metabolism during severe 

 muscular work. During his sojourn here we profited much by Dr. Cath- 

 cart's keen analytical criticism of manuscripts and of problems continually 

 arising in the laboratory. 



INVESTIGATORS ASSOCIATED IN RESEARCH ON PROLONGED INANITION. 



In connection with a study of prolonged inanition on a Maltese gentleman, 

 who volunteered to come to the laboratory as a subject, we have enjoyed the 

 cooperation of Dr. H. W. Goodall, who made most careful clinical examina- 

 tions throughout the fast ; Prof. W. G. Anderson, of Yale University, who 

 made the anthropometric measurements, assisted by his son, Mr. W. L. 

 Anderson; Dr. H. S. Langfeld, of Harvard University, who made a daily 

 series of psychological tests, and a number of the faculty of the Harvard 

 Medical School, including Dr. J. E. Ashe, who devoted himself to an exami- 

 nation of the blood; Prof. E. G. Martin, who studied the subject's sensibility 

 to electric shock; Dr. A. I. Kendall, now of Northwestern University, who 

 made a bacteriological examination of the feces, and Professors E. E. South- 

 ard and Otto Folin, both of whom offered valuable suggestions. Indeed, it 

 was only by the cooperation of all of these gentlemen that the success of the 

 study was made possible. 



STAFF NOTES. 



After two years of successful chemical experimentation in this laboratory, 

 Dr. A. W. Peters resigned his position as chemist to accept the position of 

 biochemist of the Vineland Training School for Feeble-Minded Children, 

 Vineland, New Jersey. During his connection with the Nutrition Labora- 

 tory he developed a number of methods for the exact determination of 

 copper and of reducing sugars. 



Mr. J. C. Bock, of Vienna, formerly of the department of chemistry of 

 the Michigan Agricultural College, has recently been added to the staff of the 

 laboratory as chemist. His initial work in the laboratory is the analysis of 

 the urines collected in the research on inanition, with special reference to 

 the ash and mineral constituents. To fit himself especially for this work, he 

 was accorded the privilege, through the courtesy of Dr. Rufus Cole, of 

 spending several weeks at the hospital of the Rockefeller Institute for Medi- 

 cal Research, acquiring, under the direction of Dr. Francis H. McCrudden, 

 the technique developed in thei,** laboratory for such analyses. 



To aid in the administrative details of the laboratory, a special appoint- 

 ment has been made of Mr. W. F. O'Hara as administrative secretary, and 

 in the future much of the routine work which has fallen upon the Director 



