The Artisan, or, Mechanic's instructor : containing a popular, comprehensive and systematic view of the following sciences ... also biographical notices of eminent scientific men, enriched by portraits : with many interesting and valuable articles relating to the mechanical and useful arts : the whole intended as a companion to the institutes (1825)
Carey, George G · London : Printed for William Cole · leaf 84
less spring and weight ; and thereupon the quicksilver falls a little in the tube; but upon turning the cock, and re-admitting the air into the receiver, it be- e comes as weighty as before, and the quick- silver rises again to the same height. Thus we see the reason why the quicksilver in the… … with some quicksilver in it, on the pump- rise about an inch above the plate, to prevent the quicksilver from getting into the air-pipe and bar- plate, as in the last experiment, cover it rels, in case any of it should be accidentally spilt with the receiver B ; then push the open over the jar :…
