This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1841 Excerpt: ...many years, the needle has declined to the west. Observations made at Yale College, New Haven, and by Nathaniel Goodwin, Esq., of Hartford, agree with those of the late Mr. De Witt. In June, 1805, the writer commenced observing the declination of the magnetic needle, at Hebron, in Connecticut, and he has continued his ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1841 Excerpt: ...many years, the needle has declined to the west. Observations made at Yale College, New Haven, and by Nathaniel Goodwin, Esq., of Hartford, agree with those of the late Mr. De Witt. In June, 1805, the writer commenced observing the declination of the magnetic needle, at Hebron, in Connecticut, and he has continued his observations to the present date, June, 1835. The same compass, with the same needle, has been set at the same place, and to the same object. During that period, the north end of the needle declined to the west 1 20'. At the former date, the declination was 4" 50' W. The annual motion of the needle has not been uniformly steady. In some years rt was more rapid than in others, and, in one or two instances, for a period of three or four years, none, except the diurnal motion, could be discovered. The west declination is still increasing. While at so many places in the northern states, and at many more which might be mentioned, the west declination has increased, at Salem, in Massachusetts, according to the observations of Dr. Bowditch, it has steadily decreased.' In 1580, at London, the magnetic needle pointed eleven degrees and a half to the east of north, which proves that the line of no declination was then east of that place. The east declination diminished until 1657, when the line of no declination arrived there, and passed by; of course, west declination commenced, and at the close of the last century, it had increased to twenty-four degrees. The line of no declination must have made rapid progress through the Atlantic, and through a grent part of the United States, to have arrived at Charleston in 1700, and at the coast of Florida in 1756. It is unaccountable, how the west declination at Loudon should increase, while at Philadelphia...
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Add this copy of A System Of Geometry And Trigonometry: With A Treatise to cart. $44.22, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2007 by Kessinger Publishing.
Add this copy of A System Of Geometry And Trigonometry: With A Treatise to cart. $45.33, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2010 by Kessinger Publishing.
Add this copy of A System of Geometry and Trigonometry: With a Treatise to cart. $60.60, new condition, Sold by Media Smart rated 4.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2007 by Kessinger Publishing.
Add this copy of A System of Geometry and Trigonometry: With a Treatise to cart. $62.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2007 by Kessinger Publishing.
Add this copy of A System Of Geometry And Trigonometry: With A Treatise to cart. $63.47, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2008 by Kessinger Publishing.
Add this copy of A System of Geometry and Trigonometry: With a Treatise to cart. $73.20, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2010 by Kessinger Publishing.
Add this copy of A System of Geometry and Trigonometry: With a Treatise to cart. $90.14, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2008 by Kessinger Publishing.
Add this copy of A System of Geometry and Trigonometry: With a Treatise to cart. $107.00, very good condition, Sold by Zephyr Used & Rare Books rated 5.0 out of 5 stars, ships from Vancouver, WA, UNITED STATES, published 1844 by Belknap and Hamersley.
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Seller's Description:
8vo. 160; 112 pp. Numerous woodcut engraved diagrams, figures. Contemporary full speckled calf, speckled fore-edges, tan & gilt morocco spine label (minor shelfwear, slight rubbing, occasional light foxing), still an excellent copy. Third edition, revised & expanded, of this popular American treatise on surveying published originally in 1804 would continue to be updated and revised for over half a century. An edition of Abel Flint's work was one of the two consulted by Abraham Lincoln while he studied to become a surveyor, as it emphasized higher math, including logarithms, plane geometry, and trigonometry.
All Editions of A System of Geometry and Trigonometry; With a Treatise on Surveying in Which the Principles of Rectangular Surveying, Without Plotting, Are Explained
