June 24, 1921] 



SCIENCE 



569 



from short rods in line with the plane of vi- 

 bration, "while the extremely small diameter 

 of the rods would not sufficiently intercept the 

 light vibrating in a plane transverse to their 

 length. 



It is expected to continue the investigation 

 with artificial light and other varied condi- 

 tions, followed by a later account. 



Elihu Thomson 

 Thomson Laboratoet op General Electric 

 Co., Lynn, Mass. 

 May 23, 1921 



EDWARD BENNETT ROSA 



Dr. Edward B. Eosa, chief physicist of the 

 Bureau of Standards, at Washington, died 

 suddenly at his desk on Tuesday afternoon. 

 May 17, 1921. Dr. Eosa was at the time the 

 chief of Division I. of the Bureau of Stan- 

 dards, the functions of which include research, 

 standardization and testing in the fields of 

 electricity, magnetism, photometry, radio com- 

 munication, radium. X-ray, and public utili- 

 ties. Dr. Eosa was appointed physicist in 

 the Bureau in 1901. In 1910 he was given 

 the grade of chief physicist. Dr. Eosa's pains- 

 taking accuracy in scientific research is well 

 known among specialists in the fields in which 

 he worked. His investigations have been pub- 

 lished in 36 scientific publications of the 

 bureau and 4 technologic papers, not to speak 

 of a large number of special reports, circu- 

 lars, and articles in technical journals. 



Among the researches of unusual interest 

 may be mentioned the precise determination of 

 the value of the coulomb, the value of the 

 ampere, and of the ratio between the electro- 

 static and the electromagnetic units of elec- 

 tricity. His other laboratory researches in- 

 cluded a wide range of problems chiefly con- 

 nected with the improvement of the standards 

 and methods used in precise electrical measure- 

 ments. 



Perhaps one of the most striking examples 

 of Dr. Eosa's thoroughness and success in se- 

 curing the cooperation of the technical groups 

 interested may be found in the development 

 and publication of the National Electrical 

 Safety Code, the revised form of which has 



just recently appeared as a " Handbook " is- 

 sued by the Bureau of Standards. 



In his work as administrator he successfully 

 organized the work of electrical testing, pho- 

 tometry, radium testing, and research and 

 standardization work involved in radio com- 

 munication. Dr. Eosa showed a deep interest 

 in all phases of the bureau's development, and 

 will be remembered with profound respect and 

 admiration by his colleagues. His work will 

 endure as a permanent foundation for the 

 branches of physics and electrical engineering 

 to which he devoted so many useful years of 

 his life. 



S. W. Stratton 



Department or Commerce, 

 Bureau op Standards 



SCIENTIFIC EVENTS 



THE HARPSWELL LABORATORY 



The Harpswell Laboratory was founded at 

 South Harpswell, Maine, in 1898, as a sum- 

 mer school of biology by Dr. J. S. Kingsley, 

 then professor of biology in Tufts College, 

 Massachusetts. In 1913 it was reorganized as 

 a scientific corporation under the laws of the 

 state of Maine, with a board of ten trustees. 

 Up to 1920, ninety-two scientists have worked 

 in its laboratory at South Harpswell and over 

 one hundred and ten papers have been pub- 

 lished, as a result of this work, in American 

 and foreign journals of biology. 



In the spring of 1921 the Harpswell Labo- 

 ratory became a member of " The Wild Gar- 

 dens of Acadia " Corporation, and this cor- 

 poration alloted to the Harpswell Laboratory 

 a tract of land of abundant acreage for its 

 purposes and further growth at Salisbury 

 Cove, Maine, on Mount Desert Island, with 

 shore frontage and favorable life conditions, 

 upon which the Harpswell Laboratory has es- 

 tablished its Weir Mitchell Station. In its 

 new site the laboratory is in close contact with 

 the wild life sanctuary of Lafayette National 

 Park, created recently on Mount Desert Island 

 by the United States through the efforts of a 

 group of its summer residents. This is the 

 only National Park in the eastern portion of 

 the Continent and the only one in the country 



