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" ... diameter. B, a sliding tube of tin, moving up and down in the pot ; the head of the tube is closed, but has a slit in it, C, to admit of the thermometer passing through a collar of cork, which shuts up the slit where the thermometer is placed. D,... "
Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 112
by Edward Charles Frome - 1850 - 253 pages
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Outline of the Method of Conducting a Trigonometrical Survey, for the ...

Edward Charles Frome - 1840 - 200 pages
...a collar of cork, which shuts up the slit where the thermometer is placed. D. Thermometer, with so much of the scale left out as may be desirable. E....temperature of the air at the time should be noted. A few minutes will suffice for the whole operation ; and where very great accuracy is not required,...
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Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and ...

John Gregory - 1843
...from the bottom of the pot. Before a thermometer is used for this purpose, the boiling point must be correctly marked for the level of the sea by a number of careful observations, noting the difference, if any, as an index error. The inventor recommends to have two or more thermometers,...
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A Treatise on Military Surveying: Including Sketching in the Field, Plan ...

Basil Jackson - 1847 - 344 pages
...a collar of cork, which shuts up the slit where the thermometer is placed. D, thermometer, with so much of the scale left out as may be desirable. E,...temperature of the air at the time should be noted. A few minutes will suffice for the whole operation ; and where very great accuracy is not required,...
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A Treatise on Military Surveying: Including Sketching in the Field, Plan ...

Basil Jackson - 1853 - 360 pages
...two inches from the bottom of the pot. Before using a thermometer for this purpose, it is neces^ sary to ascertain if the boiling point is correctly marked...temperature of the air at the time should be noted. A few minutes will suffice for the whole operation ; and where very great accuracy is not required,...
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Appleton's Dictionary of Machines, Mechanics, Engine-work, and ..., Volume 1

1873 - 1082 pages
...Holes for the escape of steam. The boiling point for the level of the sea should be correctly marked by a number of careful observations, and the difference, if any, must be notfd u an index error. These thermometers are very useful in ascertaining heights where ftrict accuracy...
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Appletons' Cyclopędia of Applied Mechanics: A Dictionary of ..., Volume 1

Park Benjamin - 1878 - 994 pages
...holes for the escape of steam. The boiling-point for the level of the sea should be correctly marked by a number of careful observations, and the difference, if any, must be noted as an index error. These thermometers are very useful in ascertaining heights where strict accuracy is not required, and...
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