"Graphite" Quotes from Famous Books
 ... evidences are the pre-Cambrian limestones, iron ores, and graphite deposits, since such minerals and rocks have been formed in later times by the help of organisms. If the carbonate of lime of the Algonkian limestones and marbles was extracted from sea water by organisms, as is done at present by corals, mollusks, ...
— The Elements of Geology • William Harmon Norton
... corners. He might even have been elected president of the new Academy, and have presided over the Italian sculptors and degenerate French painters imported to instruct and "civilize" modern Japan. Stiff graphite pencils, making lines as hard and sharp as those in the faces of foreigners themselves, were to take the place of the soft charcoal flake whose stroke was of satin and young leaves. Horrible brushes, fashioned of the hair of swine, pinched ...
— The Dragon Painter • Mary McNeil Fenollosa
... flaky graphite and kerosene oil. Apply this as soon as there is any indication of ...
— Practical Mechanics for Boys • J. S. Zerbe
... appear in the form of rhizocarps—plants allied to Marsilea and Azolla,—and a very little higher, ferns, lycopods, and even conifers appear. We have indications, however, of a still more ancient vegetation, in the carbonaceous shales and thick beds of graphite far down in the Middle Laurentian, since there is no other known agency than the vegetable cell by means of which carbon can be extracted from the atmosphere and fixed in the solid state. These great ...
— Darwinism (1889) • Alfred Russel Wallace
... Graphite, locally known as plumbago, the only commercial mineral of the country, might be seen in the Palace of Mines and Metallurgy. More than 600,000 hundredweights of this valuable commodity were exported in 1899, the greatest demand being in the United States, where the article ...
— Final Report of the Louisiana Purchase Exposition Commission • Louisiana Purchase Exposition Commission
... is made by placing pieces of iron in a clay or graphite crucible, mixed with charcoal and a small amount of any desired alloy. The crucible is then heated with coal, oil or gas fires until the iron melts, and, by absorbing the desired elements and giving up or changing its percentage ...
— Oxy-Acetylene Welding and Cutting • Harold P. Manly
... capable of a thousand uses. Carborundum is another product of the electric furnace. It was the invention of Edward B. Acheson, a graduate of the Edison laboratories. Acheson, in 1891, was trying to make artificial diamonds and produced instead the more useful carborundum, as well as the Acheson graphite, which at once found its place in industry. Another valuable product of the electric furnace was the calcium carbide first produced in 1892 by Thomas L. Wilson of Spray, North Carolina. This calcium carbide is the basis of acetylene ...
— The Age of Invention - A Chronicle of Mechanical Conquest, Book, 37 in The - Chronicles of America Series • Holland Thompson
... soft coal, coke, charcoal, graphite, peat, and petroleum. Note the distinctive characteristics of each. Discuss the uses. Try to set each on fire. Note which burns with a flame when laid on the coals or placed over the spirit-lamp. Put a bit of soft coal into a small test-tube; heat and light the gas that is produced. This ...
— Ontario Teachers' Manuals: Nature Study • Ontario Ministry of Education |
