The following is the evidence given by Dr. J. C. Bose, C. S. I., C. I.
E., Professor of Physics, Presidency College, Calcutta, on the 18th
December, 1913, before the Royal Commission on the Public Services in
India, presided over by Lord Islington, and published, in the Minutes of
Evidence relating to the Education Department, at pages 135 to 137, in
volume XX, Appendix to the Report of the Commissioners: