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Letter from Robert Beesley about preservative paint and damp walls
Letter from Robert Beesley about preservative paint and damp walls
Letter from Benjamin Powles about his synthetic metal
Letter from Benjamin Powles about his synthetic metal
Letter from Leigh Smith about copal varnish
Letter from Leigh Smith about copal varnish
Letter from 'Chorographus', descriptions of his improvements in the preparation of white lead and verdigris
Letter from 'Chorographus', descriptions of his improvements in the preparation of white lead and verdigris
Letter from Johann Carl Wilhelm Hocker about his preparation of verdigris, with samples
Letter from Johann Carl Wilhelm Hocker about his preparation of verdigris, with samples
Letter from Samuel Gaskell about his method of burning smoke
Letter from Samuel Gaskell about his method of burning smoke
Letter from Thomas A Soley about his black dye for cotton yarn
Letter from Thomas A Soley about his black dye for cotton yarn
Letter from Thomas Lovewell about French rouge
Letter from Thomas Lovewell about French rouge
Letter from William Gee claiming premium for the prevention of dry rot in timber
Letter from William Gee claiming premium for the prevention of dry rot in timber
Letter from Captain William Gravatt about his method of preserving paper in tropical climates
Letter from Captain William Gravatt about his method of preserving paper in tropical climates
Letter from Edward Bertlis about scarlet dye for cotton
Letter from Edward Bertlis about scarlet dye for cotton
Letter from A Home describing his discoveries of orpiment
Letter from A Home describing his discoveries of orpiment
Letter from J Harris about his method of tanning leather
Letter from J Harris about his method of tanning leather
Letter from August Greefer and sample of a yellow and green dyed cotton
Letter from August Greefer and sample of a yellow and green dyed cotton
Letter from Samuel Howard about the shades of colours which he had discovered, with samples
Letter from Samuel Howard about the shades of colours which he had discovered, with samples
Letter from Henry Cook about his method of dyeing silk black
Letter from Henry Cook about his method of dyeing silk black
Letter from Charles De Schede in French on Russia leather and turkey red
Letter from Charles De Schede in French on Russia leather and turkey red
Letter from James Dalbiac about his black dye
Letter from James Dalbiac about his black dye
Letter from Henry Cook about his black dye
Letter from Henry Cook about his black dye
Letter from Henry Sarcy about a black cloth dye, in French
Letter from Henry Sarcy about a black cloth dye, in French