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.

CHAP. XVII. Six additional Instructions about proving of fresh Oar, called hard Lead.

[Section. 1] ITEM, Three quarters of a centner of Copper to 11 loths; and half a centner of fresh lead; 2 centner of Litarge is leaded in 8 centners, into 4 pieces, con∣tain 33 loths.

[Section. 2] Item, A half centner of copper to 8 loths; a quarter of a centner to 15 loths: one centner and a quarter fresh, is leaded in 8 centners, into 4 pieces contain 31 loths.

[Section. 3] Item, Half a centner of copper to 15 loths; one quar∣ter of a centner to six loths, three quarters of a centner to two centners of Litarge leaded into 9 centners, into 4 pieces, contain 36 loths.

[Section. 4] Item, Three quarters of a centner of copper to 11 loths and a half, and half a centner of fresh; and two cent∣ners of Littarge leaded in 8 centners, into 4 pieces, and contain 34 loths and a half.

[Section. 5] Item, Half a centner of copper to 13 loths: a quar∣ter of a centner to 10 loths: half a centner of fresh, two centners of Litarge leaded in 7 centners, into 4 pieces, contain 36 loths.

[Section. 6] Take notice, if the Copper be very poor, then you may add such lead, as doth contain one and a half, or 2 loths of silver.