298 CARNEGIE INSTITUTION OF WASHINGTON. 



COOPERATING AND VISITING INVESTIGATORS. 



The researches on diabetes have been so extensive and so profitable 

 in results that Professor E. P. Joslin has devoted a considerable portion 

 of his time to these studies during the first half of his academic year. 

 This has resulted in an unusual activity, both in the special respiration 

 room at the New England Deaconess Hospital and particularly at the 

 Nutrition Laboratory, where several severe cases of diabetes were 

 studied in the new clinical respiration chamber. 



Dr. Fritz Talbot has cooperated in the investigation on infants, with 

 particular reference to the metabohsm of the new-born infants, most 

 advantageous arrangements for securing material for study having been 

 made with the ^Massachusetts General Hospital and the Boston Lying- 

 in Hospital. 



Dr. J. H. Means, of the ^Massachusetts General Hospital, has con- 

 tinued his cooperation with Mr. H. L. Higgins, of the Laboratory staff, 

 in a series of observations on the effect of drugs upon the alveolar air 

 in gaseous metabolism. 



Dr. Reginald Fitz, of the Peter Bent Brigham Hospital, devoted a 

 considerable part of his academic year to personal research in the 

 Nutrition Laboratory on the metabolism of cats and other small 

 animals, as shown by the universal respiration apparatus. 



Professor Howard T. Karsner, of the Harvard Medical School, 

 cooperated in studying the physiology and the respiration of rabbits in 

 an atmosphere containing a high percentage of oxygen. Following 

 Professor Karsner's removal to the Western Reserve University Medi- 

 cal School, Dr. J. E. Ash, of the Harvard Medical School, has continued 

 the research. 



Dr. Francis W. Peabody, of the Peter Bent Brigham Hospital, has 

 spent some time with Mr. H. L. Higgins, of our staff, familiarizing 

 himself with the respiration apparatus, with special reference to the 

 acidosis developed as a result of taking a carbohydrate-free diet. 



Dr. Eugene F. DuBois, of the Russell Sage Institute of Pathology, 

 visited the Laboratory during the j^ar, and we are indebted to him for 

 much helpful criticism. 



After a leave of absence spent in special research under Professor 

 Otto Folin, of the Harvard Medical School, Dr. T. M. Carpenter has 

 resumed his experimental activities in the Laboratory. 



Mr. H. L. Higgins, for a number of years a member of the staff of 

 the Nutrition Laboratory, has resigned to become associated with Dr. 

 John Howland, of the Department of Pediatrics, in the Johns Hopkins 

 Medical School. It would be a difficult task to cite the numerous 

 benefits and the great help that the Laboratory has derived from Mr. 

 Higgins's keen criticism and capacity for painstaking research. 



