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Books Bücher 1 - 10 von 13 in This table is supported by a tripod of light construction, without leveling apparatus,...
" This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument being effected with sufficient accuracy by the tripod legs. A single screw fastens the board to the tripod head, and the adjustment in... "
Report - Seite 318
von Maryland Geological Survey - 1898
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Bulletin of the Geological Society of America

Geological Society of America - 1891
...construction without leveling apparatus, the level of the instrument being effected by the legs of the tripod. The table is adjusted in azimuth or oriented by means of the compass needle, movement in azimuth being provided by simply turning the table on top of the tripod head. There is...
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Bulletin of the Geological Society of America

Geological Society of America - 1891
...construction without leveling apparatus, the level of the instrument being effected by the legs of the tripod. The table is adjusted in azimuth or oriented by means of the compass needle, movement in azimuth being provided by simply turning the table on top of the tripod head. There is...
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Bulletin of the Geological Society of America

Geological Society of America - 1891
...construction without leveling apparatus, the level of the instrument being effected by the legs of the tripod. The table is adjusted in azimuth or oriented by means of the compass needle, movement in azimuth being provided by simply turning the table on top of the tripod head. There is...
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The School of Mines Quarterly, Band 12

1891
...without levelling apparatus, the level of the instrument being effected by the legs of the tripod. The table is adjusted in azimuth or oriented by means of the compass-needle, movement in azimuth being provided by simply turning the table on top of the tripod...
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Report

Maryland Geological Survey - 1898
...containing a compass needle 3 inches in length. This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument...needle — that is, it is turned until the needle rests opposite the zero marks in the compass box, and is thus always made approximately parallel to...
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Report, Band 2

Maryland Geological Survey - 1898
...containing a compass needle 3 inches in length. This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument...needle — that is, it is turned until the needle rests opposite the zero marks in the compass box, and is thus always made approximately parallel to...
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Report

Maryland Geological Survey - 1898
...containing a compass needle 3 inches in length. This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument...The table is adjusted in azimuth, or oriented, by moans of the compass needle — that is, it is turned until the needle rests opposite the zero marks...
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Bulletin, Ausgaben 303-308

1907
...construction, without leveling apparatus, the leveling of the instrument being effected with suflicient accuracy by the tripod legs. A single screw fastens...compass needle; that is, it is turned until the needle rests opposite the zero marks in the compass box, and is thus always made approximately parallel to...
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Manual of topographic methods

Henry Gannett - 1906 - 88 Seiten
...needle 3 inches in length. (See PI. VIII.) This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument...compass needle; that is, it is turned until the needle rests opposite the zero marks in the compass box, and is thus always made approximately parallel to...
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The Areas of the United States, the States, and the Territories

Henry Gannett - 1906 - 9 Seiten
...needle 3 inches in length. (See PI. VIII.) This table is supported by a tripod of light construction, without leveling apparatus, the leveling of the instrument...compass needle; that is, it is turned until the needle rests opposite the zero marks in the compass box, and is thus always made approximately parallel to...
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