38 REPORTS Oh THE STATE OP SCIENCE. 



The results so far obtained are not sufficiently advanced to appear 

 in the present Report. 



During the course of the year Dr. Filon has found it necessary 

 to resign the secretaryship of the Committee, and, at the request of 

 the Chairman, Dr. Nicholson has taken up the duties. 



'The Committee have given further consideration to the suggestion 

 that they should undertake the publication of a volume containing all 

 the tables of Bessel functions and other allied functions now existent, 

 and that their work should be directed towards the filling up of serious 

 gaps which such a volume would contain. They view this suggestion 

 with favour, and seek the necessary permission from the Association. 

 A list of the existing tables has been compiled, and is now believed 

 to be complete. The Committee are desirous of reappointment, again 

 without a grant. 



Experiments for Improving the Construction of Practical Standards for 

 Electrical Measurements. — Report of the Committee, consisting of 

 Lord Eayleigh (Chairman), Dr. E. T. Glazebrook (Secretary), 

 Professors J. Perry, W. G. Adams, and G. Carey Foster, Sir 

 Oliver Lodge, Dr. A. Muirhead, Sir W. H. Preece, Professors A. 

 Schuster, J. A. Fleming, and Sir J. J. Thomson, Dr. W. N. Shaw, 

 Dr. J. T. Bottomley, Rev. T. C. Fitzpatrick, Dr. G. Johnstone 

 Stoney, Professor S. P. Thompson, Mr. J. Rennie, Principal E. H. 

 Griffiths, Sir Arthur Rucker, Professor H. L. Callendar, 

 and Messrs. G. Matthey, T. Mather, and F. E. Smith. 



PAOE 



Appendix. — Order in Council relating to Electrical Standards, dated Januarii 10, 



1910 40 



The Report of the International Conference on Electrical Units and 

 Standards held in London in October 1908 was printed as an Appendix 

 to last year's Report. 



In January 1910 the Board of Trade took action in accordance with 

 the recommendations of the Report, and an Order in Council relating 

 to electrical units, dated January 10, which contains definitions of the 

 English standards of resistance, current, and electromotive force in 

 conformity with the definitions adopted by the Congress, has been 

 issued. This is printed as an Appendix. 



In accordance with a scheme approved by the International 

 Scientific Committee appointed by Lord Rayleigh at the London Con- 

 ference, international co-operative work on electric standards has this, 

 year been carried out at the Bureau of Standards, Washington. It 

 was arranged that representatives of the Bureau of Standards, the 

 Laboratoire CeDtral d'Electricite, Paris, the Physikalisch-Technische 

 Reichsanstalt, Berlin, and of the National Physical Laboratory should 

 take part in the work. The representatives of the Bureau of Standards 

 were Professor E. B. Rosa and Dr. F. A. Wolff, and the European 



