The works of the Honourable Robert Boyle, Esq., epitomiz'd by Richard Boulton ... ; illustrated with copper plates.

About this Item

Title: The works of the Honourable Robert Boyle, Esq., epitomiz'd by Richard Boulton ... ; illustrated with copper plates.
Author: Boyle, Robert, 1627-1691.
Publication: London :: Printed for J. Phillips ... and J. Taylor ...,; 1699-1700.
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Subject terms: Physics -- Early works to 1800.; Chemistry -- Early works to 1800.; Medicine -- 15th-18th centuries.
Link to this Item: http://name.umdl.umich.edu/A28936.0001.001
Cite this Item: "The works of the Honourable Robert Boyle, Esq., epitomiz'd by Richard Boulton ... ; illustrated with copper plates." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A28936.0001.001. University of Michigan Library Digital Collections. Accessed June 14, 2024.

Pages

EXPERIMENT III. The Spring of the included Air, will elevate Mer∣cury almost to an equal Height in Tubes of a diffe∣rent Bore.

IN order to try, whether the same Quantity of Air would by it's Expansion raise the Mercury to the same Height in a narrow, as in a Cylinder of a larger Diameter, we repeated the former Tryal with a Pipe of the same Diameter, but much longer; in which the Spring of the Air rais'd the Mercury to 28 Inches and ⅛, the Mercury in the Borometer, being 29 Inches and ¼ high at the same time. So that the Air was able by its Spring, to raise the Quicksilver with∣in an Inch as high in a large Tube, as in a smal∣ler: And when the Spring of that Air was no further able to expand it self, the Parts of it be∣ing put into Motion by Heat, the Spring of it was so much increas'd, as to raise the Mercury ⅝ of an Inch higher.