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. XIII. How to prove whether Lead be very Copperish.

IF you think your Lead have much Cop∣per with it, and would be assured there∣of, Then weigh with the great weight a Centner of the Lead, put it upon a ve∣ry flat Hearth, and make a small fire of Wood upon it, lay also a green wood

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before, that the Lead may go and very gently pass away under the before laid wood: Now, when such lead hath copper in it, if only two pound in a Centner, so the cop∣per will remain on the hearth, and what you find is but leady copper, but if you will have it very clean, then blow it with a Bellows upon a hearth, till it becomes ready, but in the little proof, 'tis seen upon the Coppel, for when the Lead which hath much, begins to go, then touch the Copper flowers, and the coppels will become black after 'tis gone off.

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