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 1, 2024.

Pages

EXPERIMENT XXX.

TO shew that a change of Colour depends on an Alteration of Texture, I shall add, that the same Matter being seal'd up in a Philo∣sophical Egg, it will by Digestion, pass through several degrees of Colours, before it comes to that of the noblest Elixir. And that several Substances will undergo changes of Colour by Digestion, is evident, in rectify'd Spirit of Harts-horn, Precipitations of Amalgamas of Gold, and Mercury, without Addition, where by a continu'd Heat, the Silver-colour'd Amal∣gama will be turn'd into a shining red Powder; which Effects are produc'd without an Addition or Substraction of Matter, by the bare change of Texture.