EDITORIALS 



Ernst Schulze was one of the great pioneers in biological chem- 

 istry. He worked in an inspired way along the zone between the 

 old zoöchemistry and the ancient phytochemistry, and achieved the 



distinction of removing the barriers between 



rnst c uze these two fields and uniting them in one great 

 open biochemical territory. He brought Hght and understanding 

 into large domains where darkness and doubt prevailed. His ex- 

 ample in industry, patience, perseverance, devotion, enthusiasm, abil- 

 ity and productiveness has been an inspiration to biochemical work- 

 ers the world over. Schulze's classical achievements and Service 

 will be forever linked with the history of fundamental developments 

 in a great formative scientific era. His name and Service will be 

 justly remembered, as his memory will be venerated, for very many 

 generations. 



As the methods of chemical analysis become more delicate and 



refined there appears ever increasing evidence that the maintenance 



of health and nutrition depends not alone on the caloric values of 



T . ^ ^1. u food-stuffs and the relativ^e proportions of nitro- 

 Important though ^ . 



unknown factors in gen and carbon in the diet, but quite as much on 

 nutrition other factors which we are beginning fully to 



appreciate. Scurvy has long been one of the indications that there 

 are certain unappreciated factors in a normal diet, and the antiscor- 

 butic action of vegetables and vegetable Juices is strong emphasis on 

 this point. The researches of Hart, McCollum, Steenbock and 

 Humphrey/ on cattle, and of Osborne and Mendel,^ on rats, are 

 among the many recent studies that reveal the importance of such 

 unknown though influential factors in their broad bearing. 



The disease beriberi is a concrete example of the disturbance of 

 such subtle influences. For a considerable time physicians in the 



^ Hart, McCollum, Steenbock and Humphrey : University of Wisconsin 

 Agricultural Experiment Station Research Bulletin, No. 17 (June, 1911). 

 * Osborne and Mendel: Carnegie Institution, Puhlication 156. 



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