CHAPTERLXXV.PRACTICE OF THE SECOND EXAMPLE:With a distinct View of the Work. (Ph. Tr. for 1777, Page 579.)Section 386.THE Point at which the Quicksilver stood in the Tube of the Barometer on the Mountain, or in the Car of the Balloon, being Inches 24.178 Tenths; itsattachedThermometer, Degrees 57.2 Tenths, and its Air-Thermometer 56°; while the Barometer on the Ground stood at Inches 28, .1318 Tenths; itsattachedThermometer, Degrees 61, .8 Tenths, and its Air-Thermometer 63°, .9; what is the Height of theupperStation?1st. Step.387. 1st. Step. Set down the Observation on the Ground, thus:Below, Barometer, Inches 28, .1318 Tenths,AttachedThermometer, Degrees 61, .8 Tenths.Air-Thermometer, 63°, .9.2d. Step.388. 2d. Step. Set down the Observation, on the Mountain, orin the Car, thus:Above, Barometer, Inches 24, .178 Tenths.AttachedThermometer, Degrees 57, .2 Tenths.Air-Thermom. 56°.3d. Step.389. 3d. Step. From thewarmer attachedThermometer, subtract the colder, thus:61°, .857, .2———4, .6390. 4th. Step. Give thecolderBarometer thesame Expansion, viz. 4°, .6 with the warmer, by thefirstTable.
CHAPTERLXXV.
Section 386.THE Point at which the Quicksilver stood in the Tube of the Barometer on the Mountain, or in the Car of the Balloon, being Inches 24.178 Tenths; itsattachedThermometer, Degrees 57.2 Tenths, and its Air-Thermometer 56°; while the Barometer on the Ground stood at Inches 28, .1318 Tenths; itsattachedThermometer, Degrees 61, .8 Tenths, and its Air-Thermometer 63°, .9; what is the Height of theupperStation?
1st. Step.
387. 1st. Step. Set down the Observation on the Ground, thus:
Below, Barometer, Inches 28, .1318 Tenths,
AttachedThermometer, Degrees 61, .8 Tenths.
Air-Thermometer, 63°, .9.
2d. Step.
388. 2d. Step. Set down the Observation, on the Mountain, orin the Car, thus:
Above, Barometer, Inches 24, .178 Tenths.
AttachedThermometer, Degrees 57, .2 Tenths.
Air-Thermom. 56°.
3d. Step.
389. 3d. Step. From thewarmer attachedThermometer, subtract the colder, thus:
61°, .8
57, .2
———
4, .6
390. 4th. Step. Give thecolderBarometer thesame Expansion, viz. 4°, .6 with the warmer, by thefirstTable.