s pot by a spring (i) beneath the cross bar g, and fits the pot
so accurately that it effectually prevents the escape of the vapor of
the iodine, bromine or other accelerating liquid contained therein.
The other half of the lid is cut through, shoulders being left at the
four angles for the different sizes of frames, designed to recieve the
plate while undergoing the coating process. When the plate is put into
the frame, the cover b is shoved under the second lid h and when coated
to the proper degree, it resumes its former position and the plate is
placed in the holder of the camera box. To test the tightness of the
box, light a piece of paper, put it into the pot and cover it with the
sliding lid. The burning paper expels the air from the pot, and if it
be perfectly tight you may raise the whole box by the lid.

VI. GLASS FUNNELS.--Are a necessary article to the Daguerreotypist, for
filtering water, solutions, &c.

[Illustration: Fig. 14 (hipho_14.gif)]

VII. GILDING STAND.--For nervous persons the gilding stand is a useful
article. It is adjusted to a perfect level by thumb screws placed in
its base.

VIII. SPIRIT LAMPS.--The most useful and economical of those made are
the Britania, as they are less liable to break; and the tube for the
wick being fastened to the body by a screw renders it less liable to
get out of order or explode. Glass is the cheapest, and for an amateur
will do very well, but for a professed artist the Britania should
always be obtained.

IX. COLOR BOX.--These are generally found on sale at the shops, and
usually contain eight colors, four brushes and a gold cup. The artist
would, however, do well to obtain, all the colors mentioned in the last
chapter of this work, and be sure to get the very best, as there are
various qualities of the same color, particularly carmine, which is
very expensive, and the cupidity of some may induce them to sell a poor
article for the sake of larger profits.

[Illustration: Fig. 15 (hipho_15.gif)]

STILL.--Daguerreotypists should always use distilled water for
solutions, and washing the plate, as common water holds various
substances in solution which detract very materially from the
excellence of a photograph, and often gives much trouble, quite
unaccountable to many. For the purpose of distilling water the
apparatus represented at Fig. 16 is both convenient and economical.

It may be either wholly of good stout tin, or of sheet iron tinned on
th