Paris: Gauthier-Villars et Fils, 1898. First edition. Small 8vo., viii, 139 pp. The printed paper wrappers are moderately age-toned, with a shallow crease at the lower tip and the publisher's price sticker affixed to the rear wrapper; else near fine and unopened. Item #26646
A complete guide to the equipment, sensitized materials for making enlargements, apparatus, light sources, and darkroom requirements, with added emphasis to the techniques for making smaller images for the convenience of the traveling photographer, especially by bicycle.
Roosens and Salu No. 877 listing this as the second such manual published. WoldCat locating only twelve copies.