Natural magick by John Baptista Porta, a Neapolitane ; in twenty books ... wherein are set forth all the riches and delights of the natural sciences.

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Title: Natural magick by John Baptista Porta, a Neapolitane ; in twenty books ... wherein are set forth all the riches and delights of the natural sciences.
Author: Porta, Giambattista della, 1535?-1615.
Publication: London :: Printed for Thomas Young and Samuel Speed ...,; 1658.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Science -- Early works to 1800.; Industrial arts -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A55484.0001.001
Cite this Item: "Natural magick by John Baptista Porta, a Neapolitane ; in twenty books ... wherein are set forth all the riches and delights of the natural sciences." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A55484.0001.001. University of Michigan Library Digital Collections. Accessed May 12, 2025.

Pages

CHAP. LI.

That the Loadstone may lose its vertue.

I Found out, That this is the onely true way, amongst many that are set down by Writers, by heaping Fire-coals upon the Loadstone: for once made red-hot, it presently loseth all its vertue, and a vapor flies from it that is blewish black, or Brimstone-like, smelling strong, as Coals do; and when that flame and vapor ceaseth to exhale, if you take it out of the fire, all the force of it is breathed forth: and I always thought, that that was the Soul of it, and the cause of its attraction of iron; whenas iron is made of Brimstone not perfect: as I read in ••ebar and other

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Writers that treat of Metals: which is the cause that it runs so swiftly to the Load∣stone, and desires so much to be imbraced by it: and when that vapour is gone from the stone, it loseth all its vertue; and then it is but a dead carcass, and it is in vain to endeavour to revive it.