Van Nostrand's Engineering Magazine, Nide 10

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D. Van Nostrand, 1874
 

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Sivu 96 - PLATTNER.— Manual of Qualitative and Quantitative Analysis with the Blow-Pipe. From the last German edition, revised and enlarged. By Prof. Th. Richter, of the Royal Saxon Mining Academy. Translated by Prof. H. B. Cornwall, assisted by John H.
Sivu 163 - It can engrave a seal, and crush masses of obdurate metal like wax, before it, — draw out, without breaking, a thread as fine as gossamer, and lift a ship of war like a bauble in the air. It can embroider muslin, and forge anchors, — cut steel into ribands, and impel loaded vessels against the fury of the winds and waves.
Sivu 192 - Plattner's Manual of Qualitative and Quantitative Analysis with the Blow-Pipe. From the last German Edition, revised and enlarged. By Prof. TH. RICHTER, of the Royal Saxon Mining Academy. Translated by Prof. HB CORNWALL, Assistant in the Columbia School of Mines, New York.
Sivu 379 - DIETZ.— A Practical Manual of Chemical Analysis and Assaying : As applied to the Manufacture of Iron from its Ores, and to Cast Iron, Wrought Iron, and Steel, as found in Commerce. By LL DE KONINCK, Dr.
Sivu 262 - Suppose for a moment that there were no electricity whatever in the air — that the air was absolutely devoid of all electric manifestation, and that a charge of electricity were given to the whole earth. For this no great amount would be necessary. Such amounts as we deal with in our great submarine cables would, if given to the earth as a whole, produce a very considerable electrification of its whole surface.
Sivu 163 - It would be difficult to estimate the value of the benefits which these inventions have conferred upon this country. There is no branch of industry that has not been indebted to them ; and, in all the most material, they have not only widened most magnificently the field of its exertions, but multiplied a thousandfold the amount of its productions.
Sivu 260 - And if there were currents round the earth, regulated by some cause so as to give them a definite direction at one time, we are as far as ever from explaining how the channel of these currents could experience that great revolutionary variation which we know it does experience.
Sivu 382 - Rutledge," by Edgar Lee Masters may be ready to welcome laborers to a new field of usefulness, and to clear the road for their progress. This I have tried to do, as well in the perfecting and execution of their ideas as in making such provision as my means have permitted for the proper education of the young mechanics and citizens of my native city, in order to fit them for the reception of new ideas, social, mechanical and scientific — hoping thus to economize and expand the intellectual as well...
Sivu 538 - how far the present use of rivers or running waters in England for the purpose of carrying off the sewage of towns and populous places, and the refuse arising from industrial processes and manufactures, can be prevented without risk to the public health, or serious injury to such processes and manufactures...
Sivu 260 - magnetic storms" are of not very unfrequent occurrence. In a magnetic storm the needle will often fly twenty minutes, thirty minutes, a degree, or even as much as two or three degrees sometimes, from its proper position — if I may use that term — its proper position for the time ; that is, the position which it might be expected to have at the time according to the statistics of previous observations. I speak of the needle in general. The ordinary observation of the horizontal needle shows these...

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