Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 478
olumn by inclining the instru-ment ; and in like manner the iron wire is restored to the endof the mercury-column by means of a magnet. The iron wire in the tube of Eutherfords maximum thermom-eter is liable to become immersed in the mercury, if the instru-ment is not carefully handled; and when… … rig. 351. and the bulb (Fig. 351) they insert into the tube of the ther-mometer a small rod of glass, a b, which nearly fills the bore.When the mercury expands, it pushes by this obstruction; butwhen it contracts, the column breaks, leaving the head of the 454 CHEMICAL PHYSICS. column at the…
Matter · Heat
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