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When the boiling point at the upper station alone is observed, and for the lower the level of the sea, or the register of a distinct barometer is taken, then the barometric reading had better be converted into feet, by the usual method of subtracting...
Outline of the Method of Conducting a Trigonometrical Survey, for the ... - Page 114
by Edward Charles Frome - 1850 - 253 pages

## The Journal of the Royal Geographic Society of London, Volume 24

Royal Geographical Society (Great Britain) - 1854 - 538 pages
.... . 75" Ditto ditto below ... 83 Mean .... 79=Multiplier. . . 1-098 Correct altitude 2 • 566 ft. When the boiling point at the upper station alone...the usual method of subtracting its logarithm from 1-47712 (log. of 30 inches) and multiplying by -0006, as the differences in the column of " barometer...

## Journal, Volume 2

1833 - 752 pages
...Temperature of air, above, 35* below, 50 Mean 42,5 = multiplier, 1.022 Correct altitude, ft. 5365.5 2. When the boiling point at the upper station alone...the lower the level of the sea or the register of a distant barometer is taken, then the barometrical reading had better be converted into feet by the...

## Outline of the Method of Conducting a Trigonometrical Survey, for the ...

Edward Charles Frome - 1840 - 232 pages
...air above . . 75° Ditto ditto below . . 83 Mean 79 = Multiplier 1.098 Correct altitude 2566 feet. When the boiling point at the upper station alone...the usual method of subtracting its logarithm from 1.47712 (log. of 30 inches) and multiplying by .0006, as the differences in the column of " barometer...

## What to Observe: Or, The Traveller's Remembrancer

Julian R. Jackson - 1841 - 650 pages
...Temperature of the air above 75" Ditto ditto below 83 Mean 79 = Multiplier 1.098 Correct altitude 2.566 feet. When the boiling point at the upper station alone...the usual method of subtracting its logarithm from 1-47712 (log. of 30 inches) and multiplying by '0006, as the differences in the column of " barometer...

## A Treatise on Military Surveying: Including Sketching in the Field, Plan ...

Basil Jackson - 1847 - 412 pages
...1-118 50 -037 70 1-079 90 1-121 51 -039 71 1-081 91 1-123 228 TO DETERMINE ALTITUDES BY BOILING WATER. When the boiling point at the upper station alone...the usual method of subtracting its logarithm from 1-4?712 (log. of 30 inches) and multiplying by -0006, as the differences in the column of " barometer"...