Iodine box--see fig. 14 page 53.

Bromine box--similar to the iodine box but a trifle deeper.

Dry Iodine.

Bromine, or a compound of Bromine and Chloride of Iodine,
or other sensitive mixture.

Most of our best operators use the compound Bromine and
Chloride of Iodine. In the early days of the Daguerreotype,
Iodine alone was used in preparing the plate, and although
it still plays a very important part, other preparations,
called accelerating liquids, quickstuff, &c., are used,
and the discovery of which has alone ensured the application
of the Daguerreotype successfully to portrait taking--for
when first introduced among us it took from five to ten minutes
to produce a tolerable good view, while now but the fraction
of a minute is required to obtain an accurate likeness.

To iodize the plate perfectly it must be placed over the iodine vapor
immediately after buffing. Scatter from a sixteenth to the eighth
of an ounce of dry iodine over the bottom of your coating box,
and slightly cover it with cotton wool. The plate is then dropped
into the frame b, fig. 12, with its silvered surface downward,
and thrust under the lid h. The bright surface of the plate
is soon coated with a film of iodine of a fine yellow color;
it is then removed and placed over the accelerating solution.
It is not absolutely necessary to perform this operation