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" ... the thermometer fitted into the aperture in the lid of the sliding tube, by means of a collar of cork ; and the tin sliding tube pushed up or down to admit of the bulb of the thermometer being about two inches from the bottom of the pot. Before using... "
Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 84
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
...inches from the bottom of the pot. Before using a thermometer for this purpose, it is necessary 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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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
...inches from the bottom of the pot. Before using a thermometer for this purpose, it is necessary 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. the difference of one degree in the temperature at which water boils indicates a change of level of...
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