British Library MS. Sloane 2573. Paper. Folio. 60 folios. 17th Century. A volume of papers, entitled by Sir Hans Sloane, 'Rich. Jones Collections about Alchymy, etc'. 1. 'Verba Aristaei patris ad filium ex caractere et idiomate Schitico-Latino rithmo donata'. f.2. Begins: 'Rerum tibi omniium jam cognitione Explanata vivendi atque ratione'. 2. Portions of a treatise on the art of transmuting metals, with processes, etc. ff.3-52. 3. Fragment of an alchemical treatise in verse. ff.53-57. Ending: 'But earths refined made pure by stars and sun, Which matter turns to light and light infuse'. 4. 'Mr Harris 'process for fixing [Mercury] into [Gold]' communicated to him by an Italian painter, Peter Gonsalvo'. f.52.