Tuffier and Miliau
2A constituent hydrocarbon of coal nap.ha. It is a colourless liquid of faint odour distinct from that of benzene, of which it is a homo logue. The crude article, of sp. gr. about o
A cell secreting u yellow pigment.
A yellow coloring-matter obtained from the bark or outer part of Sorghum vul gare, Pers. Cf. Purpurolein.
Plastic surgery for xanthoderma.
A glucosid found by A. Zander in the seeds ofclotburr, Xanthium strumarium, L.
X. Crystals, C10H,jO4, a substance occurring in silky crystals, soluble in alcohol or ether, insoluble in water; melt at 8o
A gaseous element discovered by Ramsay and Travers Its relative density is 64. A vacuum tube charged with xenon when excited assumes a sky- blue color. It melts at I400 C. and boils at 109
A plant indigenous io arid regions.
X. epitheliaiis, X. infantilis, X. tnangu