Processes, Old and New, Public and Secret.

Among the latter are the "Phototype," sometimes called the "Artotype" process, with examples; many of the "Lightning" processes; the "Platinotype" process; the "Collodion Transfer" or "Megatype" process, and many others.

58 pages are devoted to Posing and Lighting; 37 pages give instructions in Emulsion "Dry" Work; 29 pages show how to Build and Use Skylights; 108 pages furnish instructions for Manipulating Negatives; 37 pages are applied to Printing Formula and Dodges; 175 pages gives Notes from Authors all over the world.

It is printed on fine white paper, made especially for it, and sold at the low price of

$4 00 POST-PAID $4 00.

For the beginner, for the amateur, for the photographic worker, it is believed to be most complete. No live photographer should fail to get it soon, before his neighbor is ahead.

EDWARD L. WILSON, Publisher and Proprietor,

Nos. 912 & 914 Chestnut Street, Philadelphia, Pa.


DOUGLASS, THOMPSON & CO.,