Philophotog. on black tints, 116.

Photo on collodion portraits, 388.

Phonography, Hart's work on, 26.

Photography, albumen process, 116. 217.

—— amber varnish, 562.

—— animal charcoal in photography, 245.

—— antiquarian photographic club, 273. 462.

—— Archer (Mr.), his services to photography, 218.

—— black tints of French photographers, 116. 315.

—— calotype negatives, 437.