The first division and a-half, on the left hand of the diagram, are intended to indicate the respective heights of both ... will be best understood by the following account of the mode of testing them, as described in the Barometer Manual. ... the lowest pressure to which marine barometers are likely to be exposed ; and by compressing the air, the mercury may also be ... Glass windows are inserted in the upper part of the iron air-chamber, through which the Bcales of the barometers may beanbsp;...
Title | : | The circle of the sciences |
Author | : | James Wylde |
Publisher | : | - |
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