Some leaders of the A. I. E. E.

Wm. A. Del Mar, Chief Engineer of the Habirshaw Cable and Wire Corporation since 1917, was born at San Francisco, California, December 15, 1880. His father, then a well-known mining engineer, retired in 1887 and took his family to Europe in order that he might indulge his hobby of historical and archaeological research. This led to the son´s being brought up in an atmosphere of research, and receiving most of his education in Paris and London, in which latter city he was graduated as electrical engineer from the City and Guilds College, in 1900. During his last year at college, Mr. Del Mar assisted W. B. Duddell and Mrs. Ayetonin their classic work on the carbon arc, during the course of which the oscillograph and thermo-galvanometer were developed.