ON PRACTICAL STANDARDS FOR ELECTRICAL MEASUREMENTS. 41 
APPENDIX. 
International Conference on Electrical Units and Standards, 1908. 
REPORT. 
The Conference on Electrical Units and Standards, for which invi- 
tations were issued by the British Government, was opened by the 
President of the Board of Trade, the Right Hon. Winston 8. Churchill, 
M.P., on Monday, October 12, 1908, at Burlington House, London, W. 
Delegates were present from twenty-two countries, and also from 
the following British Dependencies—namely, Australia, Canada, India, 
and the Crown Colonies. 
It was decided by the Conference that a vote each should be allowed 
to Australia, Canada, and India, but a vote was not claimed or allowed 
for the Crown Colonies. 
The total number of Delegates to the Conference was forty-six, and 
their names are set out in Schedule A to this Report. 
The officers of the Conference were :— 
President. 
The Right Hon. Lord Rayleigh, O.M., President of the Royal 
Society. : 
Vice-Presidents. 
Professor S. A. Arrhenius. M. Lippmann. 
Dr. N. Egoroff. Dr. 8. W. Stratton. 
Dr. Viktor Edler von Lang. Dr. E. Warburg. 
Secretaries. 
Mr. M. J. Collins. Mr. C. W. S. Crawley. 
Mr. W. Duddell, F.R.S. Mr. F. E. Smith. 
The Conference elected a Technical Committee to draft specifica- 
tions and to consider any matter which might be referred to the Com- 
mittee and to report to the Conference. 
The Conference and its Technical Committee each held five sittings. 
As a result of its deliberation the Conference adopted the resolu- 
tions and specifications attached to this Report and set out in 
Schedule B, and requested the Delegates to lay them before their respec- 
tive Governments with a view to obtaining uniformity in the legislation 
with regard to Electrical Units and Standards. 
The Conference recommends the use of the Weston normal cell as a 
convenient means of measuring both electromotive force and current 
When set up under the conditions specified in Schedule C. 
_ In cases in which it is not desired to set up the standards provided 
in the resolutions Schedule B, the Conference recommends the follow- 
ing as working methods for the realisation of the international ohm, 
the ampere, and the volt :— 
