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Answers artist avoirdupois Bichromate BLOODIT chromium chromium compounds Chronic poisoning claim clear glass Collodion colour illustrations Council cyanide dermatitis Devonvale dots drachms Dragons Blood drams dry plate editorial effective electros Engraving Company etching to protect FARRINGDON Federation Ferrocyanide film firm fluid ounce folder shews fumes give Glue grains gramo graphy Gravure greater number Hatt screens House Hunter-Penrose Ltd hydrochloric acid hydrogen peroxide hydrogen sulphide Hypo industry Kingsway Kodak Abstr line etching liquid litho lithographer London Machines manufactured MARKET HARBOROUGH Mawson's Standard method minims newspapers nitric acid novel halftone obtained operator paper Percentage solutions PHOTO-ENGRAVING Photographic Copying Apparatus PHOTOGRAVURE piece of advertising plate halftone printing down frame Process Block produced PUMP quarto folder reader reproduced retouched round openings ROUTING CUTTER ROYLE scruples skin stipple stops sulphur symptoms telling tion tive to-day trouble TUNGSTONE PATENT ulceration wet plate WILLIAM GAMBLE zinc