 | Edward Charles Frome - 1840 - 232 стор.
...Holes for the escape of steam. The pot is filled four or five inches with pure water ; the thermometer fitted into the aperture in the lid of the sliding...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,... | |
 | John Gregory - 1843 - 350 стор.
...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,... | |
 | Basil Jackson - 1847 - 410 стор.
...holes for the escape of steam. The pot is filled four or five inches with pure water ; the thermometer fitted into the aperture in the lid of the sliding...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,... | |
 | Basil Jackson - 1853 - 420 стор.
...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,... | |
 | 1873 - 1078 стор.
...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... | |
 | Park Benjamin - 1878 - 994 стор.
...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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... C, to admit of the thermometer passing through 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. Holes for the escape of steam. The pot is filled four... 