Rensselaer Union and Jasper Republican, Volume 8, Number 35, Rensselaer, Jasper County, 18 May 1876 — INDUSTRIAL,STATISTICAL AND TECHNICAL. [ARTICLE]

INDUSTRIAL,STATISTICAL AND TECHNICAL.

ify P,500,000 ymrlj. W' fc'aS£|JyßLiTmTiSvi per toflptUxo, quinine,' guano and corn. > r~ T«t Mhdno Journal »avs tliat one of ttNPfipMl abjection* raised against the are to bslfere the Libert*, this objection has nonrensAppokred. In feet, according to that paper, the tunnel can be completed fiMTOriUinufcths! It tell* us that 1 h f9^ lnve , atod & which fifty -five meters or ground may be pierced through .per diem, and it calculates if both the English and the French begin piercing at the same time the tuu aei can bo cut out in 144 days. The statistical office of the German railway lines has published the returns of the accidents which happened during the yMt 1875 Oft all Germsh railways except the Bavarian lines. There were 755 run-hlngs-off the rails and collisions of trains pa the outside, and 1,376 runnings-off the rails ana collisions inside the stations, and 1,850 accidents of divers natures by which the regular service was interrupted. These accidents have caused the loss of the lives -of 60# persons; 1,645 persona were hurt. The proportion of accidents to the number of passenger trains was one to 5,304, and to that ot freight trains one to 2,200. Scientific experimenters appear confident of the practicability and value of the expansion of liquids as a motor. It is well known that with gases the expansion is found to be equal to several hundred times the liquid, but the elasticity of the Sis also great, while, with the liquid If, the expansion is small, but the developed forces enormous. In London, oil is expanded by heat, and a slowly moving pressure of ten thousand pounds to the square inch obtained without danger of explosion. Feinting presses and riveting and punching machines have already been successfully run by this process. Bapid steam pressure by gearing can be converted into slow high pressure; and now, to complement the advantages of this achievement, it is suggested that invention ought to transpose the operation and trans- • form a slow high pressure into rapid motion add less feme. Us. T. 8. Host, of Boston, has compiled some statistics concerning the mineral wealth of the country which are really Interesting. He divides the country by a north and south line at the eastern base of the Rocky Mountains, upon the Atlantic side of which are coal, iron, copper, lead, salt and petroleum, and upon the Pacific side the more precious minerals. The grand total of coal for 1873 he finds to he about 50,000,000 tons. In 1872, iron reached its highest figures of production, the total being 2,880,(m) tons. In 1874 the Lake Superior' mines alone turned out 17,327 tons of copper. The product of petroleum rose from 500,000 barrels in 1859 t0t10,867,930 barrels in 1874. West of • the Kocky Mountains the official figures show that California, Nevada, -Idaho, Montana, Utah, Colorado, Oregon, Washington and New Mexico yielded of the precious metals, $72,428,205 in 1874, and in 1875 $80,889,087.