Note 29 — Chapter IV
Reading edition
The conversion of the diamond into graphite and coke was first effected by the agency of the galvanic arc of flame, by M. Jaquelini, and communicated to the Academy of Sciences in 1847, in a Memoir entitled, De l’action calorifique de la pile de Bunsen, du chalumeau à gaz oxygène et hydrogène sur le carbon pur, artificiel et naturel. See Comptes Rendus, 1847, vol. xxiv. p. 1050; also Report of the British Association, for 1847, (Transactions of Sections) p. 50.