EDWIN J. PRINDLE, M.E., L.L.M., of the New York Bar.
A paper read at the 23d Annual Convention of the American Institute of
Electrical Engineers, Milwaukee, Wis., May 28-31, 1906.
_A paper presented at the 23d Annual Convention of the American
Institute of Electrical Engineers, Milwaukee, Wis., May 28-31, 1906._
Copyright 1906. By A. I. E. E.