. Journal. mer. Chem. J. 6, 24S-252.In the fraction of water-gas tar boiling at 210 230° (pro-duct of the destructive distillation of light petroleumnaphtha), 5 S per cent, of anthracene was found, and2-OS per cent, in the higher boiling fraction?. The totalyield from the original tar amounted to 20-20 per cent0 -J. B. C. Improved Apparatus for Carbonising Bones and Turf,and for Coking ami Distilling Brown Coal, Pit Coal,and other Carbonaceous Materials by means if Super-heated Steam. B. J. B. Mills, London. From A.ZwiUinger, Vienna. Eng. Pat. 0905, April 29, 1884.The apparatus employed for ca

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. Journal. mer. Chem. J. 6, 24S-252.In the fraction of water-gas tar boiling at 210 230° (pro-duct of the destructive distillation of light petroleumnaphtha), 5 S per cent, of anthracene was found, and2-OS per cent, in the higher boiling fraction?. The totalyield from the original tar amounted to 20-20 per cent0 -J. B. C. Improved Apparatus for Carbonising Bones and Turf, and for Coking ami Distilling Brown Coal, Pit Coal, and other Carbonaceous Materials by means if Super-heated Steam. B. J. B. Mills, London. From A.ZwiUinger, Vienna. Eng. Pat. 0905, April 29, 1884.The apparatus employed for carrying out this inventionis principally composed of a furnace A (Figs. 1, 2 and 3), for superheated steam, several cast-iron retorts commu-nicating with a common coudensi r, and of a gasometerofthe usual form. The fireplace of the furnace is dividedinto two chambers, so that it is healed by two separatetires, and along both sides of the Hue conduits areformed in the brickwork, communicating with the Hue 3L1. es? at certain interval- by means of small apertures. The steam pipe- r rest in two vertical wall-, so that theelbow joints d are placed right and left in narrow chan-nels fi, which are in connection with the furnace properby narrow lines /.. The steam inter- at g, anil after traversing the heated pipes e, it passes through pipeshand branches Aj, -which are provided with many smallholes, into cast-iron cylinders < •. containing the materialto be treated. The fire-gases travel through a Hue /.into an annular space j, heating thus the steam pipesand the cylinder- (i, and escape at / into the chimney. The-vapours and gases evolved in G are conveyed to a condenser II, and thence through n to coolers. The lis*] THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. admission of air to the hre-places can be carefully their hea. Between the chambers oI the retort£^aregulated by means of slides in the ash-pit doors c, and or sMe is arranged, winch canbe opentod from theborder to pr