Below. Barometer, Inches 29, .4 Tenths.
Attached Thermometer, 50 Degrees, Air-Thermometer 45°.
3d. Step, in Section 355.
Above. Barometer, Inches 25, .19 Tenths.
Attached Thermometer 46°, Air Thermometer, 29°1⁄2.
| From 50° | subtract |
| 46 | |
| —— | |
| and there remains 4 | Degrees of Temperature to be added to the colder Barometer. |
4th Step, in Section 356.
By Means of the first Table, find the Expansion of the colder Barometer, with Degrees of Heat, viz. 4° on Inches 25, .19, gradually, thus:
5th Step, in Section 364.
6th Step, in Section 366.