The ferrotype and how to make it - The Grian Press

114 THE FERROTYPE.
CHAPTER X.
FOG, AND OTHER CAUSES OF FAILURE.
The practice of photography, in any of it3
branches, is beset by almost innumerable diffi-
culties, especially to the student. Many of these
difficulties are merely the result of his slight ac-
quaintance with the properties of the substances
which he employs, and of their combinations.
His knowledge of those substances, however,
will rapidly increase, and with the increase of
knowledge, the recurrence of fogs and other
technical errors and causes of failure will be less
and less frequent, until, perhaps, they cease alto-
gether.
It is expected that those who adopt the
methods and processes recommended in the fore-
going pages, and exercise a conscientious care in
all the various operations, as directed in the
article on the Collodion process, will be com-
paratively free from failures of any kind, even
from the first; yet still, as these disturbances
sometimes trouble even the most experienced, it
is hoped that the few concise directions given
hereafter, as to the mode of procedure in such
cases, will enable the operator to overcome all
Buch difficulties and their causes. Careful and
observing operators very larely "get into a fog;**