1.   Artists, opium smokers, thugs, children and aristocracy captured in gelatin silver prints are part of it.

2.   Both are gelatin silver prints.

3.   Downtown, the Andrew Smith Gallery sells photographs by Edward S. Curtis, Ansel Adams and other wizards of the gelatin print.

4.   It is a silver gelatin print with all the velvety gradations of grays that make black-and-white photography an art form Kodacolor will never duplicate.