Catalogue Issue

Catalogue Issue

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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. 1865 edition. Excerpt: ...as serve to indicate the proper method of treatment. He then treats the given quantity, makes a careful examination of the products at each step of the process, ascertains the amount of power, water, chemicals, fuel, and labor expended, wherever practicable, and thus learns approximately the effectiveness and economy of the method-adopted. The Institute is from time to time receiving ores of gold, silver, lead, copper, antimony, zinc, iron, etc., from various localities on this continent. These ores are worked, and reports sent to those who contributed them; and it is hoped that by such cooperation the laboratory will continue to receive the necessary amount and variety of ores. Models, etc., relating to the Engineering Courses. The collections under this head consist of models in wood, in metal, i and in plaster, besides lithographs, photographs, and manuscript drawings, chiefly selected from the best collections of France, Germany and Switzerland, and, in some instances, made expressly for the school. They are arranged for convenience in the following groups. Some of these groups contain one or two hundred models, others only a few typical ones; it is, however, proposed to add from time to time such as may be required for the purposes of instruction. Descriptive Geometry and its Applications. A set of models in relief, illustrating the various problems of Descriptive Geometry, arranged upon sets of planes at right angles to each other, and containing the corresponding graphical solutions; a set of models illustrating linear perspective, and the theory and practice of shades, shadows, and reflections; plaster models showing the intersections of cylinders, cones, and surfaces of revolution with each other, the penetrations made in each...show more

Product details

  • Paperback | 250 pages
  • 189 x 246 x 13mm | 454g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236888189
  • 9781236888181