Publisher's Synopsis
Excerpt from A Manual of Photographic Chemistry: Including the Practice of the Collodion Process
Therefore it is best perhaps, if possible, to steer an inter mediate course between these two' extremes; that is to say, to select those points which are of fundamental and primary importance, and to enter into them with considerable minute ness, leaving others of less consequence to be dealt with after a more summary manner, or to be altogether omitted.
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