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. XVI. Thirteen additional Instructions about good Copper.

[Section. 1] ITEM, One piece shall have 2 Centners and an half of Lead, and three quarters of Copper, and there shall be no more in one piece than 18 loths.

[Section. 2] Item, Three quarters of a Centner of fresh Copper to 21 loths, and three quar∣ters of a centner of Lead: to three loths and a half, half a centner: to two loths three quarters of a centner of fresh lead, and a centner of Litarge: thus you have four Pieces of 77, and a half loth of silver, in 11 cent∣ners.

[Section. 3] Item, Three quarters of a centner of copper to 18 loths, and an half centner of lead: to four loths and an half, three quarters of a centner: to three loths, one quarter of a centner: to two loths, one quarter of a

centner of fresh, and one centner▪ and 18 pounds of Litarge, mingled in 74 loths of lead, do yield 10: and a quarter and an half of a centner of lead.

[Section. 4] Item, Half a centner of copper to 15 loths of Sil∣ver content; and one quarter of a centner to 20 loths, and one centner of lead: To 4 Loths, half a centner: To two loths, one quarter of a centner of fresh: one centner of Litarge leaded in 70 loths of Silver doth yield 10 centners of lead▪

[Section. 5] Item, Half a centner of copper to 15 loths: one quar∣ter of a centner to 17 loths: One centner of lead to 5 loths: half a centner to one loth and an half; one quarter of a centner fresh; one centner of Litarge leaded in 70 loths will yield ten centners of good lead.

[Section. 6] Item, Three quarters of a Centner of Copper to 17 loths: one centner of lead, to 4 Loths: one dram, one quarter of a Centner to 4 loths and an half: one quarter of a centner to one loth and an half: and one quarter of a centner fresh, one centner and 18 pound of Litarge leaded in 74 loths yields 10 and an half centners of lead.

[Section. 7] Item, Three quarters of a centner of Copper to 18 loths and half a centner of lead: to three loths and an half, a quarter of a centner: to four loths and an half three quarters of a centner: to three loths one quarter of a centner: to two loths one quarter of a centner of fresh, and one centner of Litarge leaded in 76 loths and a half yields 10 centner of lead.

[Section. 8] Item, Three quarters of a centner of copper to 16 loths and half a centner of lead: to 3 loths and a half: three quarters of a centner: to four loths and an half: one quarter of a centner: to two loths one quarter of a cent∣ner of fresh: and one centner of Litarge (or instead of it, three quarters of a centner of fresh) leaded in 70 loths and a half do yield 10 centners of lead.

Item, Half a centner of copper to 19 loths: and a

quarter of a centner to 7 loths: one centner and a half of lead to three loths and a half: and half a centner to one loth and a half; and one centner of Litarge leaded in 69 loths and a half, yieldeth 10 centners of lead.

[Section. 10] Item, Half a centner of Copper to 19 loths: one quarter of a centner to 16 loths: one centner of lead to 4 loths: one dram and half centner to one loth and a half: one quarter of a centner fresh, and one centner and 18 pounds of Litarge leaded in 74 loths do yield 10 centners and an half of lead.

[Section. 11] If there be no Litarge to be had, then take half a centner of good copper to 9 loths, one quarter of a centner of copper to 30 loths: one centner and a quar∣ter of lead to 4 loths, and an half centner to one loth and an half, and a quarter of a centner fresh: thus make all times the additions upon the hard lead, that there may be in a piece 10 centners, 10 and an half, or 11 centners of lead, also the silver in 4 pieces, 70, 72, 74, 75, 77 loths, thus the lead doth contain 7 loths of sil∣ver, happily one dram more or less.

[Section. 12] Item, Three quarters of a centner of fresh copper to 20 loths: three quarters of a centner of lead to 4 loths; and half a centner to two loths, and one centner of Lit∣targe: and half a centner of fresh lead leaded in 76 loths yields 10 centners of lead.

[Section. 13] Item, Three quarters of a centner of Copper to 21 loths: three quarters of a centner of lead to three loths and an half; and half a centner to two loths: and half a centner of fresh lead, and one centner of litarge, or three quarters of a centner of fresh lead, leaded in 77 loths and a half do yield 10 centners of lead.