Abstract :
For several years an extensive investigation on the dielectric strength of air, and more particularly, on the law of corona, has been carried on by the Consulting Department of the General Electric Company, under the general supervision of Dr. C. P. Steinmetz. The facilities were practically unlimited in regard to power, apparatus, instruments and their standardization, and available engineering skill. Thanks for their active assistance in this investigation are due to Dr. E. J. Berg, Messrs. C. M. Davis, J. L. R. Hayden, A. B. Hendricks, W. K. Page, L. T. Robinson, L. A. Schloss, W. I. Schlicter, C. W. Stone and J. B. Taylor.
