Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 287
destruc-tion of the balsam. It may also be piepared by boiling the biilfam, afer pulverising it, in water,containing potash or ammonia, filteringand adding dilute sulphuric acid as long asa precipitate falls, filtering again and sub-liming. The product of this process isgenerally great r that by… … UT in contending forthe fidelity of treatment,jM as regards their natuial\P philosophy, exh bited byTurner in his landscapes,we must perhaps excludethose of the last twenty years,more especially, from that of posi-tive actuality ; in fact, many of hisprofessed u views1 are only type*of realties;…
Photography · Art and photography
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