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 I.

HAving caused twelve Ounces of dryed Blood to be carefully distilled, the Sub∣stances obtained from it, were of Volatile Salt and Spirit together five Ounces; the Liquor poured off from the wet Salt being thirteen Drachms, fifty four Grains, so that the Salt was three Ounces, two Drachms, and six Grains; of fetid Oyl there were two Ounces; of Caput Mortuum four Ounces, and two Drachms; so that about six Drachms of the whole was consumed in the Operation. The Caput Mortuum being calcined yielded but six Drachms and a half of ashes, the fixed Olea∣ginous Parts being consumed by the accensi∣on; the colour of the ashes was reddish when cool, tho' in the fire they appeared white as soon as the Oyl was consumed, these ashes be∣ing turned into a Lixivium, afforded five scru∣ples of white fixed Salt, besides a little which got into the contiguous Sand, which being recovered by Water, and reduced to a Salt made a scruple more. So that there remain∣ed for the Terra Damnata fourteen Scruples and a half, which is a good deal above twice

Page 515

the weight of the Salt; whence it appears, that the pure fixed Salt is but between the fifty seventh and fifty eighth part of dryed Blood, and therefore probably amounts to no more than about the 170th part of the mass of Blood; and the fixed Earth is to dryed Blood as about nineteen and about a half to one.

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