Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 363
he astonishing pro-gress made in the art of Photography sinceMr. Fox Talbot published his first process,what may we not expect from Thermogra-phy, the first rude specimens of which ex-hibit far greater perfection than the earlyefforts of the sister art ? 50. * Philosophical Transactions, Part 1.,… … CHLORIDE OF BARIUM. ^HIS chloride is precipi-tated by dissolving car-bonate of baryta in hy-drochloric acid. Thesolution by evaporationyields crystals having theform of lamellar cubes.We obtain quite agreeable tonesby preparing a chloride of silver forthe positive proofs with the aid ofthis salt.…
Photography · Art and photography
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