Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 671
iculties of manipulation, the necessityfor extensive experience, and for special andcumbersome appliances were obstacles itat once removed. And not only so, butthe whole scope of the art was extended ;for work that was before supposed im-practicable, even to the most expert pro-fessional… … Fig. 311. greatly indebted for this,enthusiasm of the amateur,of the art to a remarkable extent 620 PHOTOGRAPHY. of being modified as a dry plate method, by coating the film with apreservative solution of tannin, gum, albumen, or other substance, andthen drying the plates, of course in a dark…
Inventions
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