n be percieved, it indicates imperfect
amalgamation; this can be easily remedied by pouring a little mercury
upon them immediately after removing them from the acid, taking care to
get none upon the centre plate A.

Directions for use.--A sheet of silver must be attached to the wire
connected with the centre plate A of the battery, and placed in the
silver solution--prepared as directed below. The plate to be silvered
is first cleaned with diluted sulphuric acid, and then attached to the
wire, G, proceeding from the zinc plates D, D, and placed in the silver
solution, opposite the silver plate attached to the pole F, and about
half an inch from it. A slight effervescence will now be percieved
from the battery, and the silver will be deposited upon the
Daguerreotype plate, while at the same time a portion of the silver
plate is dissolved.

To prepare the solution of silver.--Dissolve one ounce of chloride of
silver in a solution of two ounces of cyanide of potassium, previously
dissolved in one quart of water. The oxide of silver may be used
instead of the chloride. This solution is put into a tumbler, or other
vessel.

[Illustration: Fig. 21 (hipho_21.gif)]

[Illustration: Fig. 22 (hipho_22.gif)]

This battery with the necessary articles for using it may be obtained
of E. Anthony, 205 Broadway, New York city.

The other articles required by every operator may be simply enumerated,
viz:

Sticking, or sealing paper.

A pair of pliers, or forceps.

Porcelain pans or dishes, for applying the hyposulphite of soda and
washing after the imagine is fixed, something in form like fig. 23.

A support for holding the plate while being washed, like fig. 24.

[Updater's note: Figures 23 and 24 were missing from the image set.]

[Illustration: Fig. 25 (hipho_25.gif)]

BUFF STICKS.--Fig. 25.--These are usually from one to three feet in
length, and about three inches wide--some think two and a half
sufficient. The underside, which is convex, is covered with a strip of
finely prepared buckskin, or velvet, well padded with cotton or tow.

All the articles enumerated in this chapter may be obtained, of the
very best quality and at the most reasonable rates, of Mr. E. Anthony,
205, Broadway, New York.

CHAP. VI.

THE DAGUERREOTYPE PROCESS.

The process of taking Daguerreotype pictures differs very materially
from all others of the photographic art, inasmuch as the production of
the image is effected upon plat