XYLENNE. C

6H*4(CH?)?. Also known as dim ethylbenzene. Three isomeric forms occur, known as ortho-, meta and para-xylene respectively. They are similar in their properties, being mobile, inflammable liquids, having rather pleasant odors. They are volatile in steam and distill without decomposition. They occur in coal tar, meta-xylene forming about 80% of the fraction distilling between 136-141° C., while the ortho and para compounds are present in small quantities. They cannot separated by distillation, and chemical means are needed in order to isolate them in the pure state. All three have valuable solvent properties, similar to those of benzene. On oxidation they form toluic acid. dent Adams of the U.S.A. used this term in the Congre reports for the letters of Marshall, Pinckney, and Gerry, who were amba adors to Talleyrand in France, Y, 25th letter of alphabet; derived from Gk. upsilon; in M.E. g and y were confused, hence use of y as consonant in yard (O.E. geard). of mountains, E. Siberia, extending from Urga, N.E. to Chita; highest point, Mount Sokhondo, 8,040 feet. BE. ), town, on Ya, Sze-chuen, China; tea. Pop. 38,000. Grunniens, a large Tibetan ox, which exists both in the wild and domesticated state. Two of its chief characteristics are the fringe of long pendulous hair along each flank and the huge whisk of hair at the end of the tail. In summer the coat is a deep rich brown; the horns are black, large and strong. The distinction between wild and domesticated Ys. is the grey hair on the nostrils of the former. They can live at very high altitudes, and the domesticated animal §s used as a beast of burden and yields milk and meat. Y y