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15 Exhaustive
Thermometers for example, may be filled almost instantaneously
to as great a degree of accuracy as they usually are by any of the
customary & tedious means. For this purpose the tubes may be
place perpendicularly in a vessel of sufficient capacity to contain
them, supporting them by means of a grating or net work,
then the chamber may be exhausted & the mercury or sprits admitted
to the vessel containing the the tubes by means of a stop cock;
so at to cover the orifices of the tubes, there being no improvement
from air contained in them the fluid will fill them instanta-
neously excepting the very small portion of air & water
that an air pump is found incapable of exhausting which may
be afterward taken away by the usual means.
Identifier: | JB/107/148/001"JB/" can not be assigned to a declared number type with value 107. |
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107 |
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148 |
exhaustion |
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001 |
[[titles::instructions[?]]] |
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copy/fair copy sheet |
1 |
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recto |
d15 |
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35139 |
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