Ure's Dictionary of Arts, Manufactures, and Mines; Containing a Clear Exposition of Their Principles and Practice Volume 4

Ure's Dictionary of Arts, Manufactures, and Mines; Containing a Clear Exposition of Their Principles and Practice Volume 4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1878 edition. Excerpt: ...through the chimney, passing out through the wire-gauze top. ' The glass is thick and well annealed. I have allowed the lamp to burn nearly an hour, until the glass was quite hot, and then thrown cold water upon it, without producing any efi'ect whatever on the glass. The wick should not be high, as a very short one gives light enough, and not much smoke. The best kerosene (of as high a test as possible) should be used in the lamp, since the latter gets warm. The top of the wire-gauze covering of the chimney becomes more or less clogged with lampblack, which can be removed from time to time with a fine brush.' IMP, SAPS," for mines. See SAFETY LAMP. LAHDOLPBIA 1"!-OIJDA. The name of a creeping lant growing on the West Coast of Africa, from which a large quantity of ind1a-rub or is collected. See Inom-Rosana. I-575. (Vol. iii. p. 46.) ' A Report on the Chemical, Mineralogical, and Microscopical Lavas of Vesuvius, from 1631 to 1868, ' by t.he Rev. SAMUEL Huronros and Professor Enwsan HULL, appears in vol. xxvi. of the Transactions qf the Royal Irish Academy, from which the following analyses have been abstracted. It should be stated that the chemical and mineralogical part is by Dr. Hsoonron, aided in the analyses by Mr. WM. EARLY, while the microscopical portion is by Mr. E. HULL. The minerals found by the latter to be present in all lavas are leucite, anorthite, augite, magnetite, and nephelite, and in many of them traces of sodalite, olivine, hornblende, and mica; in several sanidine, and in a few apatite. In the discussion of the chemical results with reference to the proportions of their mineral constituents, Dr. Hnuonron, by a simple mathematical method, obtains the maximum and minimum of the amount...show more

Product details

  • Paperback | 610 pages
  • 189 x 246 x 31mm | 1,075g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236780884
  • 9781236780881