Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 684
on a screen, and each being coloured by passingthrough tinted glasses like the original, the superposed images thus com-bined give a very lively impression of the natural colours in all theirgradations. Among the rr^any processes for reproducing photographs by non-photographic processes, some have… … Fig. 312.—Portrait of Aloysms Senefelder. PRINTING PROCESSES. As it is beyond contradiction that printing is one of those inventionswhich have most influenced the progress of mankind, so it will beadmitted that certain modern processes, by greatly facilitating the opera-tions, and vastly extending…
Inventions
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