which leave corresponding streaks that will become visible
when submitted to light, and spoil the picture.

These few preliminary hints and suggestions, will, I trust,
be of some service to all who adopt this pleasing art as a profession;
and will, with a due attention to the directions given in the practical
working of the Daguerreotype, Calotype, etc., ensure a corresponding
measure of success.



CHAP. V.

DAGUERREOTYPE APPARATUS.


The entire Daguerreotype process is comprised in seven
distinct operations; viz:

1.--Cleaning and polishing the plate.

2.--Applying the sensitive coating.

3--Submitting the plate to the action of light in the camera.

4.--Bringing out the picture; in other words rendering it visible.

5.--Fixing the image, or making it perminent--so that the light
may no longer act upon it.