(62.)

The following table will show the temperature at which water will boil under different pressures of the atmosphere corresponding to the altitudes of the barometer between 26 and 31 inches.

Barometer.
inches
Boiling
Point.
26   204°·91
26·5 205°·79
27   206°·67
27·5 207°·55
28   208°·43
28·5 209°·31
29   210°·19
29·5 211°·07
30   212°   
30·5 212°·88
31   213°·76

From this table it appears, that, for every tenth of an inch which the barometric column varies between these limits, the boiling temperature changes by the fraction of a degree expressed by the decimal ·176, or nearly by the vulgar fraction 16.

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