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Letter from Joseph Hume about the samples of kelp which he has examined
Letter from Joseph Hume about the samples of kelp which he has examined
Letter from Isaac Hawkins Browne with letter from Alexander McLeod about preserving yeast
Letter from Isaac Hawkins Browne with letter from Alexander McLeod about preserving yeast
Letter from Kath Forbes about her method of preserving yeast
Letter from Kath Forbes about her method of preserving yeast
Letter from Thomas Wright about James Milner's method of sweetening musty casks
Letter from Thomas Wright about James Milner's method of sweetening musty casks
Letter from James Milner about chemical experiments with acids
Letter from James Milner about chemical experiments with acids
Letter from Mrs Campbell to Professor Wilson about the preservation of yeast
Letter from Mrs Campbell to Professor Wilson about the preservation of yeast
Letter from Laurence Reid about his method of preserving yeast
Letter from Laurence Reid about his method of preserving yeast
Letter from Adam Harries about his method of making a trial of yeast
Letter from Adam Harries about his method of making a trial of yeast
Letter from Francis Faggioni about his vegetable essence
Letter from Francis Faggioni about his vegetable essence
Letter from Mr King about substitute for yeast
Letter from Mr King about substitute for yeast
Letter from Edmund Crawley about his methods of preserving seeds and preventing dry rot in timber
Letter from Edmund Crawley about his methods of preserving seeds and preventing dry rot in timber
Letters from Jnr Neuenhahn about distilling brandy and substitute for yeast,one in German
Letters from Jnr Neuenhahn about distilling brandy and substitute for yeast,one in German
Letter from Thomas Walker, Surveyor about the destruction of smoke
Letter from Thomas Walker, Surveyor about the destruction of smoke
Letter from Dr Thomas Trotter about his method of preserving water
Letter from Dr Thomas Trotter about his method of preserving water
Letter from Martin Brumley about production of barilla
Letter from Martin Brumley about production of barilla
Letter from Le Chevalier de Sausseuil about his method of cleaning and purifying quicksilver
Letter from Le Chevalier de Sausseuil about his method of cleaning and purifying quicksilver
Letter from John Phipps about his method of preserving ink
Letter from John Phipps about his method of preserving ink
Letter from John Collinson about his tests of William Gee's verdigris
Letter from John Collinson about his tests of William Gee's verdigris
Letter from John Collinson about his tests with William Gee's verdigris and the need for a substitute for verdigris
Letter from John Collinson about his tests with William Gee's verdigris and the need for a substitute for verdigris
Letter from William Gee about sending his verdigris to John Collinson for testing
Letter from William Gee about sending his verdigris to John Collinson for testing