ON STANDARDS FOR USE IN ELECTRICAL MEASUREMENTS. 



117 



JExpeiiments for Improving the Condrnction of Practical Standards for 

 Electrical Measurements. — Report of the Committee, consisting of 

 Professor Carey Foster (Chairman), Lord Kelvin, Professors 

 Ayrton, J. Perry, W. G. Adams, and Lord Rayleigh, Drs. O. 

 J. Lodge, John Hopkinson, and A. Muirhead, Messrs. W. H. 

 Preece and Herbert Taylor, Professor J. D. Everett, Professor 

 A. Schuster, Dr. J. A. Fleming, Professors G. F. FitzGerald, 

 G. Chrystal, and J. J. Thomson, Messrs. R. T. Glazebrook 

 (Secretary), and W. N. Shau', Rev. T. C. Fitzpatrick, Dr. J. T. 

 Bottomley, Professor J. Viriamu Jones, Dr. G. Johnstone 

 Stoney, Professor S. P. Thompson, and Mr. G. Forbes. 



Ari'Kxoix; 

 I. 



n. 



III. 



Report of the American Delegates at the Chicago Conference to the 



Secretary of State at Washi/u/tun 11 i> 



Experiments on the Value of the Ohm. By J. ViEiAMU Jones . . 123 

 Comparisnn of the Standards cmplo]ied hij Professor Jones Kith the 

 Standards of the Association. By R. T. Glazebuook . . .128 

 IV. Comparison of Some of the Standards of the Board of Trade with 



those of the Association. 5// J. Rennie ISO 



V. Values of Certain Coils heUmging to the Indian Government. By 



E. O. Walkek l-'il 



VI. On the Specific Besistance of Copper and of Silrer. By Rev. T. C. 



Fitzpatrick l-'-l 



VII. Final Bepnrt of the Electrical Standards Committee of the Board of 

 Trade, and Order in Council regarding Standards for Electrical 

 3Ieasurements ........... 136 



The work of testing resistance coils at the Cavendish Laboratory has 

 been continued. A table of the coils tested is given. 



Table I. 

 Ohms. 



