SCIENTIFIC NOTES AND NEWS 427 



Army in 1880. He became widely known by his work in eradicating 

 yellow fever from Havana after the waf with Spain, and malaria and 

 yellow fever from the Canal Zone during the construction work on the 

 Panama Canal. He reorganized the Medical Corps for the war with 

 Germany, and in 191 9, after retirement from the Army, became director 

 of the International Health Board of the Rockefeller Foundation. 



Dr. Franklin L. Hunt, physicist in the aeronautic instruments 

 section of the Bureau of Standards, who has been detailed to Paris, 

 France, for a period of twelve months, to serve as the Bureau's rep- 

 resentative in relations with the scientific and aviation authorities of 

 England, France, Italy, Belgium and Holland, is expected to return 

 about the first of October. The exchange of technical information in 

 connection with aviation matters has been greatly facilitated through 

 courtesy of the Commercial Attache Service of the Department of 

 Commerce. 



Dr. H. R. Kraybill, assistant physiologist in the Bureau of Plant 

 Industr>% U. S. Department of Agriculture, has resigned to accept the 

 position of professor of agricultural chemistry and head of the depart- 

 ment of chemistry at the Experiment Station of New Hampshire State 

 College, Durham, New Hampshire. 



Col. Arthur B. Lamb, director of the U. vS. Fixed Nitrogen Research 

 Laboratory, American University, will return to Harvard Uni\'ersity 

 as professor of chemistry, on September i. Major R. C. Tolman, at 

 present associate director, will at that time become director of the 

 Laboratory. 



Mr. O. C. Merrill, formerly chief engineer of the Forest Service, 

 has been appointed executive secretary of the newly-established Federal 

 Power Commission, which will administer the Water Power Act passed 

 in June by Congress. The members of the Commission are the Sec- 

 retaries of War, Interior, and Agriculture. 



Dr. E- W. Nelson, chief of the Bureau of Biological Survey, U. S. 

 Department of Agriculture, received the honorary degree of Master of 

 Arts from Yale University in June. 



Mr. Helge Ohlsson, of the Royal Hydrographic Service of Sweden, 

 visited the United States in June for the purpose of studying the hydro - 

 graphic, geodetic, and magnetic work of the U. S. Coast and Geodetic 

 Survey. 



Dr. Harrison E. Patten has resigned from the Bureau of Chemistry, 

 U. S. Department of Agriculture, to accept a position as chief chemist 

 with the Provident Chemical Company of St. Louis, Missouri. Dr. 

 Patten will also do consulting work in food chemistry and chemical 

 engineering. 



Mr. Waldemar T. SchallER, who has been engaged in work for the 

 Great Southern Sulphur Company, at Orla, Texas, for the past few 

 months, has severed his connection with that company and has resumed 

 his work in Washington. 



