Bryan, John Stewart
[Contributor];
Demares, William H. S.
[Contributor];
Edison, Charles
[Contributor];
Ellis, William J.
[Contributor];
Hopkins, Ernest Martin
[Contributor];
Lewis, William Mather
[Contributor];
Moxon, John W.
[Contributor];
Searle, Robert W.
[Contributor];
Stonier, Harold
[Contributor];
Wicks, Robert R.
[Contributor];
Williams, Clement C.
[Contributor]