260 ROSA AND WOLFF: INTERNATIONAL ELECTRICAL UNITS 



member each from Austria, Italy, Russia, Switzerland, Holland, 

 Belgium and Japan. The president of the committee is Pro- 

 fessor Dr. E. Warburg, president of the Physikalisch-Technische 

 Reichsanstalt, Berlin; vice-president, Dr. R. T. Glazebrook, 

 director of the National Physical Laboratory, London; treasurer, 

 Dr. S. W. Stratton, director of the Bureau of Standards, Wash- 

 ington; secretary, Dr. E. B. Rosa, physicist, Bureau of Standards. 



It had been suggested at the London Conference of 1908 that 

 delegates from the several national standardizing laboratories 

 might come together under the auspices of the International 

 Committee for cooperative work on standards whenever that 

 seemed necessary, and this was a case where it did seem necessary. 



Accordingly, it was suggested to the president and vice-presi- 

 dent of the International Committee by Drs. S. W. Stratton and 

 E. B. Rosa jointly in letters dated March 15, 1909, that such an 

 investigation be carried out at Washington, in the laboratories of 

 the Bureau of Standards. This suggestion was adopted and a 

 special committee, known as the International Technical Commit- 

 tee was appointed. This committee assembled at Washington 

 April 4, 1910, under the presidency of Dr. Stratton. 



The committee was as follows: Dr. E. B. Rosa, Chairman; 

 Dr. W. Jaeger, Geheimer Reigierungsrat, Mitglied der Physika- 

 lisch-Technischen Reichsanstalt; Prof.F. Laporte, Sous Directeur 

 du Laboratoire Central d'Electricite ; Mr. F. E. Smith, Principal 

 Assistant, National Physical Laboratory; Dr. F. A.Wolff, Associ- 

 ate Physicist, Bureau of Standards. 



The committee unanimously appointed Dr. F. W. Grover 

 secretary for the preparation of the minutes and records. 



From April 4 to May 25, 1910, the committee held nineteen 

 meetings, made or had made seventeen series of experiments on 

 the silver voltameter, besides numerous comparisons of resist- 

 ances, of standard cells and of weights. 



The apparatus and installations which were used in carrying 

 out these experiments and these comparisons were those which 

 are in use at the Bureau of Standards, except such of the volta- 

 meters, resistances, standard cells, weights and chemical mate- 

 rials as were brought by the delegates. 



