Dr. C.T. Jackson analyzed a portion of one meteorite weighing 4½ oz.; the piece was 2½ in. long, 1¼ in. wide, and 1 in. in average thickness. In the course of his report he stated: "Its specific gravity is 3.456 at 68 deg. Fahr., barom. 29.9. Its structure is imperfectly granular, but not crystallized, and there are small black specks of the size of a pin's head, and smaller, of malleable meteoric iron, which are readily removed from the crushed stone by the magnet. The color of the mass is ash gray. A portion of the surface is black and is scarified by fusion. Its hardness is not superior to that of olivine or massive chrysolite. Chemical analysis shows that its composition is that of a ferruginous olivine. One gramme of the stone, crushed in an agate mortar, and acted on by a magnet, yielded 0.43 gramme of meteoric iron, which was malleable. After the removal of this a qualitative analysis was made of the residual powder. Another gramme was also taken, without picking out the metallic iron, and was tested for chlorine and for phosphoric acid. The results of the qualitative analysis were that the stone contains silica, magnesia, a little alumina, oxide of iron and nickel, a little tin, an alloy of iron and nickel, phosphoric acid, and a trace of chlorine. These ingredients being determined, the plan for a quantitative analysis was laid out, and was duly executed by the usual and approved methods The following are the results of this analysis, per centum: Silica, with traces of tin 40.000 Magnesia 26.600 Peroxide of iron 27.700 Metallic iron 3.500 Metallic nickel 0.800 Alumina 0.400 Chlorine 0.049 Phosphoric acid not weighed -- ______ 99.049" Messrs. Dewar and Ansdell analyzed the gases in the meteorite, of which it contained three times its volume; the gases were in the following proportions to each other: Carbonic acid 61.29 Carbonic oxide 7.52 Hydrogen 30.96 Nitrogen 0.23 ______ 100.00 * * * * * TELESCOPIC SEARCH FOR THE TRANS-NEPTUNIAN PLANET. [Footnote: By David P. Todd, M.A., from the _Proceedings_ of the American Academy of Arts and Science.]