Again, we may assume that the electron-producing power of the special sensitiser or dye for the particular ray it absorbs is responsible, or responsible in part, for the special sensitiveness it confers upon the film.
"The Birth-Time of the World and Other Scientific Essays"
J. (John) Joly
This conservative effect of the gelatin may be concerned with its efficacy as a sensitiser.
"The Birth-Time of the World and Other Scientific Essays"
J. (John) Joly