eighty-two parts nickel and eighteen aluminum has a pronounced straw-yellow color, is as hard as tempered steel, and resists the blow of a hammer. The fracture, close-grained, is that of steel or bell metal. It is susceptible of a fine polish, is stable, and keeps its color. Though interesting on account of their colors, these alloys, except that of nickel, are not suitable for any use. =The Chemistry of Sausages.=--The _Lancet_ is authority for the following: "The composition of the sausage is not only complex, but it is often obscure. It is supposed to be a compound of minced beef and pork. Abroad, however, the sausage is compounded of a much wider range of substances. These include brains, liver, and horseflesh. Occasionally they do not contain meat at all, but only bread tinged with red oxide of iron and mixed with a varying proportion of fat. Horseflesh is rich in glycogen, and this fact enables its presence in sausage meat to be detected with some amount of certainty. The test, which depends on a color reaction, with iodine has recently been more carefully studied and with more satisfactory results, so that the presence of five per cent of horseflesh can be detected. At present there is no legal provision for a standard in regard to the composition of sausages, but clearly there ought to be. Limitations should be laid down as to the amount of bread used, as to the actual proportion of meat substances present, and as to the coloring matters added to give an attractive appearance of fresh meat. Sausages are extremely liable to undergo decomposition and become poisonous, owing to the elaboration of toxic substances during the putrefactive process. Bad or rancid fat is very liable to alter the character of a sausage for the worse. Thus in some instances the use of rancid lard has rendered the sausage after a time quite phosphorescent, an appearance which indicates, of course, an undesirable change. The smoked sausage is a much safer article of diet than the unsmoked, since the curing process preserves the meat substance against decomposition by reason of the empyreumatic bodies present in the wood smoke which is used for this purpose."