Ce livre de George Balagny pr sente une nouvelle m thode de d veloppement photographique base d'hydroquinone. Cette m thode est expliqu e en d tail avec des exemples et des illustrations pour guider les photographes amateurs et professionnels. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States...