Journal of the Franklin Institute, Volume 70

Front Cover
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. Cf. Index to v. 1-120 of the Journal, p. [415]
 

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Page 56 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Page 129 - The Committee on Science and the Arts, constituted by the Franklin Institute of the State of Pennsylvania for the promotion of the Mechanic Arts, to whom was referred for examination, two reflecting telescopes, made by Mr.
Page 345 - MARKET, (Rear of St. Stephen's Church, Philadelphia.) ESTABLISHED IN 1836. Instruction given in CHEMISTRY, MINERALOGY, and GEOLOGY, by LECTURES and PRACTICE.with especial reference to ANALYSIS, MANUFACTURES, AND MEDICINE. Analysis made of Ores, Minerals, Guanos, Waters, and articles of commerce and manufacture. Opinions given on chemical questions.
Page 17 - Let us now consider, for a little while, how wonderfully we stand upon this world. Here it is we are born, bred, and live, and yet we view these things with an almost 'entire absence of wonder to ourselves respecting the way in which all this happens. So small, indeed, is our wonder, that we are never taken by surprise ; and I do think that, to a young person of ten, fifteen, or twenty years of age, perhaps the first sight of a cataract or a mountain would occasion him more surprise than he had ever...
Page 347 - DRAWING. fpHE subscriber would respectfully inform his friends and the public, that he conJ tinues to give instruction in MACHINE, ARCHITECTURAL, TOPOGRAPHICAL, and LANDSCAPE DRAWING, and PAINTING in OIL and WATER COLORS. Day and Evening Classes at the office, and instructions given in Schools and Families.
Page 322 - The modulus of the elasticity of any substance is a column of the same substance, capable of producing a pressure on its base which is to the weight causing a certain degree of compression, as the length of the substance is to the diminution of its length.
Page 346 - Offices in New York are removed from 128 Fulton St. to the spacious rooms in the new Park Buildings. Nos. 37 Park Row, eastern side of the City Hall Park, and 145 Nassau St. .where all communications should be addressed, and where Inventors are cordially invited to call whenever they visit the cily.
Page 69 - Method of Calculating the Cubic Contents of Excavations and Embankments by the Aid of Diagrams 8vo, 2 00 Webb's Economics of Railroad Construction Large 12mo, 2 50 Railroad Construction 16mo, mor.
Page 130 - And as the resistance to the passage of the spark seems to be in the inverse ratio of the square of the distance ; this power ought to be able to pass across more than seven thousand openings of ^-inch each.
Page 66 - HAMMER, now eo generally introduced into this and other countries, of which they are the assignees and sole Agents for the United States. Up to the present time there have...

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