NUTRITION LABORATORY. 269 



Dr. G. H. de Paula Souza spent two months at the Laboratory, 

 cooperating in researches with Professor Miles and contributing largely, 

 in many ways, to the scientific discussions of staff members. His 

 active interest in human metabolism and his intention of establishing 

 nutrition investigations in his institute at Sao Paulo, Brazil, will, we 

 believe, contribute greatly to the physiology of southern climates, and 

 especially to our knowledge of the effect of sunlight on vital processes. 



Dr. E. C. van Leersum, of Amsterdam, formerly professor in the 

 University of Leyden, spent considerable time at the Nutrition 

 Laboratory, making a careful study of its experimental techniques and 

 administration in connection with the establishment of a national 

 institute for nutrition in Holland. 



Dr. Nils Stenstrom, from the laboratory of Professor J. E. Johansson 

 of Stockholm, brought much of interest in regard to the physiology of 

 work, especially swimming. He kindly cooperated in a series of body- 

 surface temperature measurements with cold environment. 



STAFF NOTES. 



Under the present circumstances, the demand from the outside for 

 staff members is very urgent, and the resignation of Professor H. 

 Monmouth Smith, after seven years of very conscientious service, was 

 received. With several years' experience in most successful teaching at 

 Syracuse University prior to his coming to the Nutrition Laboratory, 

 Dr. Smith goes to the Massachusetts Institute of Technology as 

 professor of inorganic chemistry. His contributions to the accom- 

 plishments of this Laboratory can hardly be adequately recorded. 



After a service beginning with the establishment of the Nutrition 

 Laboratory, Mr. Warren E. Colhns, mechanician and instrument 

 maker of the staff, has resigned to enter private business. His superior 

 construction of apparatus for our use has in large part created such a 

 demand for apparatus designed in this Laboratory as to make its con- 

 struction for hospitals and physicians a seemingly necessary private 

 undertaking. 



Foreign trip of Dr. W.R. Miles. — Prior to the war each year found 

 some responsible member of the Laboratory investigatory staff visiting 

 foreign institutes and laboratories in which work was being conducted 

 in the same, or closely related, fields of research. Hardly any ex- 

 perience can be more stimulating to the scientific interest and zeal of a 

 man than to come into personal contact with the workers of his own 

 field. It is also noteworthy that while it is very profitable to associate 

 with these men at scientific meetings and congresses, much more in 

 net scientific results can be gained by visiting them in their own labo- 

 ratories. Associations of this sort established relations of mutual 

 understanding and appreciation and bear fruit in criticism prior to 

 publication and to no little extent lead to cooperative undertakings. 



