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" The precise relative position of islands, in a township made fractional by the river in which the same are situated, is to be determined trigonometrically — sighting to a flag or other fixed object on the island, from a special and carefully measured... "
INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES, - Page 16
by INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871
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Manual of Instructions for the Survey of the Public Lands of the United States

United States. Bureau of Land Management - Surveying - 1890 - 192 pages
...provided, in order that the plats and field notes of surveys mav show the actual facts in the case. 5. The precise relative position of islands, in a township...carefully measured base line, connected with the surveyed linesj on or near the river bank, you are to form connection between the meander corners on the river...
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A Manual of Land Surveying: Comprising an Elementary Course of Practice with ...

Francis Hodgman, Charles Fitzroy Bellows - Surveying - 1891 - 520 pages
...provided, in order that the plats and field-notes of surveys may show the actual facts in the case. SEC. 5. The precise relative position of islands, in a township...trigonometrically; sighting to a flag or other fixed object en the island, from a special and carefully measured base line, connected with the surveyed lines,...
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The Practical Surveyor's Guide: Containing the Necessary Information to Make ...

Andrew Duncan (Surveyor) - Surveying - 1892 - 258 pages
...manner aforesaid, all lakes and deep ponds of the area of 25 acres and upwards ; also navigable bayous. The precise relative position of islands in a township...on the island from a special and carefully measured base-line, connected with the surveyed lines, on or near the river bank, you are to form connection...
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A Textbook on Surveying and Mapping ...: Arithmetic, formulas, geometry and ...

International Correspondence Schools - Surveying - 1898 - 518 pages
...minutes, except in closing or where the extreme length of a side of a lake or stream falls in one course. The precise relative position of islands in a township made fractional by the river in which they are situated is to be determined trigonometrically. To meander islands crossed by government lines,...
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Surveying, land surveying, mapping, railroad location, railroad construction ...

International Correspondence Schools - Civil engineering - 1899 - 814 pages
...minutes, except in closing or where the extreme length of a side of a lake or stream falls in one course. The precise relative position of islands in a township made fractional by the river in which they are situated is to be determined trigonometrically. To meander islands crossed by government lines,...
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The Elements of Civil Engineering: Prepared for Students of the ..., Volume 3

International Correspondence Schools - Civil engineering - 1899 - 798 pages
...minutes, except in closing or where the extreme length of a side of a lake or stream falls in one course. The precise relative position of islands in a township made fractional by the river in which they are situated is to be determined trigonometrically. To meander islands crossed by government lines,...
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Surveying, Land Surveying, Mapping, Railroad Location, Railroad Construction ...

International Correspondence Schools - Cartography - 1903 - 846 pages
...minutes, except in closing or where the extreme length of a side of a lake or stream falls in one course. The precise relative position of islands in a township made fractional by the river in which they are situated is to be determined trigonometrically. To meander islands crossed by government lines,...
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