We all gathered round to watch, as Poltonthe high-priest of these mysteriesdrew from the black envelope a colossal sheet of bromide paper, laid it carefully in the tray and proceeded to wet it with a large brush which he had dipped in a pail of water.

Abney has, however, pointed out that ordinary sensitized paper is not suitable for bromide plates, since there are conditions of light in which the plates will be fairly rapid while the paper will be very slow.

I propose to show you how I make a gelatino bromide enlargement on opal.

Mr. Reynolds reported that Mr. Ladley had bought some headache tablets and some bromide powders to make him sleep.