OCR Text |
Show New Method In Photography, Katatypy, thq new method In photography. pho-tography. Is, described as follows' "Over the finished negative Is poured a solution of hydro-auperoxldo. This leaves, after the ivaporatlon, a uniform uni-form layer of peroxide of hydrogen. Soon the silver of tn'o plate works upon this peroxide and produces a catalytic cat-alytic dissolution whorcver there Is sliver, while In the places free from sliver the pernxlde remains. Ily this means an Invisible picture ot hydro-superoxide hydro-superoxide Is produred.upon tho plate. This picture can. be printed from tha plate directly upon common paper, to which the Imago Is transferred." |