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. 1839 Excerpt: ...of this line, on this side of the globe, is from northwest to southeast, but it is crooked and irregular in its course. This line is not stationary, but is ever changing its position, and notwithstanding the great variety of its directions, it never crosses itself. According to Dr. Holly's chart, made in 1700, this ...
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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. 1839 Excerpt: ...of this line, on this side of the globe, is from northwest to southeast, but it is crooked and irregular in its course. This line is not stationary, but is ever changing its position, and notwithstanding the great variety of its directions, it never crosses itself. According to Dr. Holly's chart, made in 1700, this line crossed the meridian of London in 55 south latitude, crossed the equator in 17 west longitude; from thence by various windings to the island of Bermuda; from thence nearly a west course, until it struck the continent near Charleston, in South Carolina. About 1756, another chart was made, when the line had fallen so far to the west, that it struck the continent near the coast of Florida. On the east side of this line, the magnetic needle points to the west of north, and on the west side, it points to the east of north, and a regular increase of either east or west declination is found from it on its opposite sides. The line of no declination now runs through Pennsylvania, and through the eastern part of Virginia and of North Carolina, and it leaves the coast at Cape Hatteras.t At New Orleans, in 1813, the declination was east about eight degrees. The same year, an article appeared in a Philadelphia paper, firom which the following was extracted: At Philadelphia, " 1701, declination 8 30' W.; in 1793, 1 30'W.; Notwithstanding the utility of the magnetic needle, it cannot be relied on, when great accuracy is required, on account of the irregularities to which it is subject, viz., its annual and diurnal variations, and, what is the cause of still greater perplexity, its local attractions. When an old course is given to renew a line, it cannot be depended on, on account of the change in declination, between the time of the first running, and...
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Add this copy of A System of Geometry and Trigonometry, With a Treatise to cart. $22.57, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
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Add this copy of A System of Geometry and Trigonometry, With a Treatise to cart. $36.64, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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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
