Fleta minor the laws of art and nature, in knowing, judging, assaying, fining, refining and inlarging the bodies of confin'd metals : in two parts : the first contains assays of Lazarus Erckern, chief prover, or assay-master general of the empire of Germany, in V. books, orinally written by him in the Teutonick language and now translated into English ; the second contains essays on metallick words, as a dictionary to many pleasing discourses, by Sir John Pettus ... ; illustrated with 44 sculptures.
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Title
Fleta minor the laws of art and nature, in knowing, judging, assaying, fining, refining and inlarging the bodies of confin'd metals : in two parts : the first contains assays of Lazarus Erckern, chief prover, or assay-master general of the empire of Germany, in V. books, orinally written by him in the Teutonick language and now translated into English ; the second contains essays on metallick words, as a dictionary to many pleasing discourses, by Sir John Pettus ... ; illustrated with 44 sculptures.
Author
Ercker, Lazarus, d. 1594.
Publication
London :: Printed for the author, by Thomas Dawks ...,
1683.
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Subject terms
Assaying -- Early works to 1800.
Metallurgy -- Early works to 1800.
Cite this Item
"Fleta minor the laws of art and nature, in knowing, judging, assaying, fining, refining and inlarging the bodies of confin'd metals : in two parts : the first contains assays of Lazarus Erckern, chief prover, or assay-master general of the empire of Germany, in V. books, orinally written by him in the Teutonick language and now translated into English ; the second contains essays on metallick words, as a dictionary to many pleasing discourses, by Sir John Pettus ... ; illustrated with 44 sculptures." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A54597.0001.001. University of Michigan Library Digital Collections. Accessed May 16, 2024.
Pages
CHAP. XIV. Twelve necessary Instructions for an Assayer to follow.
[Section. 1] FIRST, whether Iron doth become Cop∣per? to which the Reader shall have this Answer, That I have a long while sup∣posed, because the Iron in the Coppery waters, as in Vitriol, green Argol, and such like, do precipitate the Copper, that the Copper only is precipitated in such iron water, and not the Iron it self becomes Copper, yet I have seen in Vitriol Mines, (in a Mine called Hesper) when the nails and other Iron Pins fixt in the copper-Oar, by length of time have become a good Copper mearly by Penetrati∣on; therefore I must conclude, That the Iron doth be∣come Copper; for though in the Vitriol, and other cop∣per waters, the Copper precipitateth the Iron, yet there is not so much of it therein, as to turn it to copper: only know this, That while the Iron in such Coppery waters doth precipitate the copper, so the copper will precipitate the Silver (if it be in it) therefore 'tis fit, that to the com∣mon
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precipitation of Silver in the Aqua fort. that the copper with iron pieces or lamins be put into the clean∣sing (as above is mentioned) with which the Copper and silver are precipitated, and what hath been in the Aqua fort. cometh out whole.