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Letter from W B Rooke on his experiments with horse chestnuts
Letter from W B Rooke on his experiments with horse chestnuts
Letter from Thomas Dalton about the manufacture of pitch and tar, with certificates and envelope
Letter from Thomas Dalton about the manufacture of pitch and tar, with certificates and envelope
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Letter from John Heaver about his discovery of cobalt
Letter from John Heaver about his discovery of cobalt
Letter from William Salisbury on his candlewicks, with sample
Letter from William Salisbury on his candlewicks, with sample
Letter from Robert Morgan to John Morgan about iron smelting at Carmarthen
Letter from Robert Morgan to John Morgan about iron smelting at Carmarthen
Letter from John Webb about two scarlet cloths
Letter from John Webb about two scarlet cloths
Letter to Baron Van Swieten from the Society about Uva Ursina (a copy)
Letter to Baron Van Swieten from the Society about Uva Ursina (a copy)
Letter from Mrs P Ensell about her imitation marble and other materials
Letter from Mrs P Ensell about her imitation marble and other materials
Letter from Mrs P Ensell about her imitation marble and other materials
Letter from Mrs P Ensell about her imitation marble and other materials
Letter from McNeill & Company about no 2 patent burner and glass
Letter from McNeill & Company about no 2 patent burner and glass
Letter from James Tod, Secretary of the Royal Scottish Society of Arts about a new electric light
Letter from James Tod, Secretary of the Royal Scottish Society of Arts about a new electric light
Letter from James Curves about his method of keeping coal pits free from damp
Letter from James Curves about his method of keeping coal pits free from damp
Letter from Thomas Willis about production of oil of turpentine and other essential oils
Letter from Thomas Willis about production of oil of turpentine and other essential oils
Copy of a letter to Humphrey Davy about Messrs' Ashton, Stocker & Doidge's newly discovered black mineral substance
Copy of a letter to Humphrey Davy about Messrs' Ashton, Stocker & Doidge's newly discovered black mineral substance
Letter from Messrs Ashton, Stocker and Doidge about newly discovered black mineral substance, and related minutes
Letter from Messrs Ashton, Stocker and Doidge about newly discovered black mineral substance, and related minutes
Letter from Daniel Pettibone about domestic heating and certificate of use of his invention by Pennsylvania Hospital
Letter from Daniel Pettibone about domestic heating and certificate of use of his invention by Pennsylvania Hospital
Letter from C J Hodgson about Mr Thomas Naylor's varnish, Mr Paterson's blue colour and a concrete vegetable oil
Letter from C J Hodgson about Mr Thomas Naylor's varnish, Mr Paterson's blue colour and a concrete vegetable oil
Letter from A S Lillington about lining lead pipes with stone to ensure purity of water
Letter from A S Lillington about lining lead pipes with stone to ensure purity of water
Letter from Mrs A Morris about red and pink dye from radishes
Letter from Mrs A Morris about red and pink dye from radishes