The objection to the shiny, highly polished surface of albumen and gelatine papers is that, besides the fact that the surface reflects false and dist… - Alfred Horsley Hinton

Probably every photographer has at times found it convenient to print one part of a negative more than another or lias covered another portion during printing, thus deliberately making those portions lighter or darker, as the case may be.

Probably every portrait photographer resorts to some such "dodge" for making a face lighter or other similar purpose, and he finds that the application of water-color paint in ever so thin a wash makes so much difference to the printing density that blue is commonly used as being a quick printing color, the effect of which is therefore not so great; an equally dense layer of blue and of red to any portion of a negative would print very differently, the red shutting off the light action much more powerfully than the blue.

It must be remembered that after all in making a picture we are endeavoring to set down on one plane various objects in such a way as to suggest an infinitude of varying planes, and hence we are justified in selecting such conditions of nature as shall help us to give the impression of truthfulness, even though it be not in particular cases absolutely true to fact.