A chemical catechism for the use of young people - Softcover

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1818 Excerpt: ...the earth in most parts of the world d. volcano, or bed of ore, from whence they might have been supposed to be derived. They are so similar in their composition to the meteoric stones, that it ij probable they have the same origin. La Place and Dr. Hutton suppose that these meteoric stones have Teen projected from a volcano in the moon. The one which fell in the year 1751, near Agram, in CroatiR, consists of 965 per cent, of iron and 34 of nickel. Fragments from the mass which lies in the Great Desert of Sahra were analysed by Mr. Howard, and found to consist of 96 per «ent. iron and 4 nickel; but there is an immense mass which was discovered many years ago in South America, and supposed to weigh 30 tons, which was found by Mr. Howard to be composed of 90 iron and 10 nickel. In the museum of the Academy of Sciences at Petersburg is a mass of native iron twelve hundred pounds weight. In the 79th vol. of the Philosophical Transactions, page 183, there is an account of an immense mass of native iron 15 tons weight;--both these also contain nickel. Iron is found in greater abundance than any other metal. In the northern parts of the world whole mountains are formed of iron ore, and many of these ores are magnetic. Of the English ores, the common Lancashire hematite produces the best iron. Sec Additional Notes, No. 34. In the great iron works, the ore, broken into small pieces and mixed with lime or some other substance to promote its fusion, is thrown into the furnace; and baskets of charcoal or coaks, in due proportion, «r« thrown in along with it. See Notec, page 125. A part of the IVhat is the nature of iron? Pure iron is of a blueish-gray colour; it is one of the hardest metals, though extremely ductile4; when dissolved in an acid it has a n...