292.    BONE, W. A., AND COWARD, H. F.  Direct Union of Carbon and Hydrogen.  I. Synthesis of Methane.  Jour. Chem. Soc., vol. 93, 1908, pp. 1975-1993; Proc. Chem. Soc., vol. 24, 1908, p. 221; Chem. Abs., vol. 3, 1909, p. 887.

                  Sugar charcoal was purified by prolonged ignition in dry Cl first at 700° and then at 1,100°.  The purity of the H₂ used was carefully tested.  When less than 0.1 gm. of the charcoal is heated in a stream of pure, dry H₂ at 1,100°-1,200°, in an apparatus similar to that used by Bone and Jerdan, abs. 296, large quantities of CH₄ were formed.  On 2 separate experiments the yields obtained were 73%, the remainder being lost by unavoidable oxidation or decomposition in contact with the walls of the porcelain tube.  In 1 group of 4 experiments, 422 cm.³ of CH₄ were obtained from 0.306 gm. of C.  Results of the experiments by Bone and Jerdan showing the formation of CH₄ from its elements are fully confirmed.