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Harper's Encyclopedia of United States History (ed. Benson Lossing) 324 324 Browse Search
George P. Rowell and Company's American Newspaper Directory, containing accurate lists of all the newspapers and periodicals published in the United States and territories, and the dominion of Canada, and British Colonies of North America., together with a description of the towns and cities in which they are published. (ed. George P. Rowell and company) 152 152 Browse Search
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 3 82 82 Browse Search
Abraham Lincoln, Stephen A. Douglas, Debates of Lincoln and Douglas: Carefully Prepared by the Reporters of Each Party at the times of their Delivery. 68 68 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 53 53 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 50 50 Browse Search
Hon. J. L. M. Curry , LL.D., William Robertson Garrett , A. M. , Ph.D., Confederate Military History, a library of Confederate States Military History: Volume 1.1, Legal Justification of the South in secession, The South as a factor in the territorial expansion of the United States (ed. Clement Anselm Evans) 44 44 Browse Search
Cambridge History of American Literature: volume 3 (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 41 41 Browse Search
C. Edwards Lester, Life and public services of Charles Sumner: Born Jan. 6, 1811. Died March 11, 1874. 38 38 Browse Search
Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I. 33 33 Browse Search
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Browsing named entities in George Meade, The Life and Letters of George Gordon Meade, Major-General United States Army (ed. George Gordon Meade). You can also browse the collection for 1850 AD or search for 1850 AD in all documents.

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George Meade, The Life and Letters of George Gordon Meade, Major-General United States Army (ed. George Gordon Meade), chapter 3 (search)
for a national system of lighting the coasts, the building and lighting of houses had been executed in an obsolete and a desultory fashion. In the matter of lighting apparatus alone, many light-houses still had the oldimmemorial ancient beacon fire. It was no longer ago than 1827 that Fresnel had died, after having, through his discoveries, within a few years of his death, revolutionized the whole system of lighting. His improvements, added to by those of the Stevensons and others, had by 1850 rendered the system of lighting apparatus perfect. We had acquired power over the whole range of artificial light, could reflect and refract it, combine the reflecting and refracting systems, and even treat it so that there should be no waste. The screw-pile and the hydraulic-pile had also been invented and applied to the construction of the foundation of towers, and great works in masonry had been executed for light-houses on the coast of England, so that splendid examples had been afforde