The American annual of photography . mWQ WH 207 The writer fortunately had some years previously studiedthe characteristics of many developers, and v^hen the warcaused the great advance in prices the knowledge gainedthen was practically applied, for in the office where he wasemployed two hundred to four hundred ounces of concen-trated developer was used every day, but by using hydro-quinone with appropriate cheap alkaline substances two hun-dred ounces did the work of fourteen hundred to twenty-eight hundred ounces of developer, thereby making a greatsaving. This developer has now been so impr
The American annual of photography . mWQ WH 207 The writer fortunately had some years previously studiedthe characteristics of many developers, and v^hen the warcaused the great advance in prices the knowledge gainedthen was practically applied, for in the office where he wasemployed two hundred to four hundred ounces of concen-trated developer was used every day, but by using hydro-quinone with appropriate cheap alkaline substances two hun-dred ounces did the work of fourteen hundred to twenty-eight hundred ounces of developer, thereby making a greatsaving. This developer has now been so improved thatmetol even at ante-bellum prices would not be of any advan-tage. This is especially true of results with developing pa-pers. Motion picture positives and lantern slides also show-greater clearness than when metol was employed. They sayit is an ill wind that does not blow good for some one, for thehigh prices of hydroquinone and metol were the means ofstimulating the manufacture of photographic chemicals in theUnited GRAND CANYON, YELLOWSTONE PARK. W. H. WOLF. 208
Size: 2101px × 1189px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorktennantandw
