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 essays of Lazarus Erckern ... in V books: originally 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 ... / [Sir John Pettus].

  • John Pettus
Date:
1683
Catalogue details

Licence: Public Domain Mark

Credit: 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 essays of Lazarus Erckern ... in V books: originally 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 ... / [Sir John Pettus]. Source: Wellcome Collection.

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    CHAP. XXVIII. How blinck or unclean Silver # to be burnt clean, and bow Teds for it are to be made. SEtlion i. Of Deft or neat Silver, t. To prepare the Tefts. 3. The man¬ ner of Trying them. 4. The beft Wood for burning Silver. 5. The Contents of burnt Silver. 6. How to cool the Silver. 7. Of Silver not burnt too high. 8. Of Coppery blink Silver. • 9. How to know when well burnt. 10.TheIX. SCULP TUR E Deciphered. CHAP. XXIX. How to burn Silver under the Muffle. SEtfion 1. Of Tefts with Iron Rings, a. Of Muffles for the burning. 3. A clean way of burning Silver. 4. What to do with it after burning. 5. To keep the Tefts. 6. The X. SCULPTURE Deciphered. F ' * ' ' f * • CHAP. XXX. How Copper is to be cHffayed for fine Silver. SStfion 1. How much Lead is to be added, a. To take the fmoak of Lead from Silver. CHAP. XXXI. To fe'parate Silver from Tin. . * SEttion 1. The making a Teft for it. a. To make Tin thus feparated pro¬ fitable. 3. To precipitate the Silver from Tin. CHAP. XXXII. How to drive all forts cf Silver that they be deft fmooth and fine. SEttion 1. The Ufe of Lead for the fame- 2,. Brittle hard Silver made deft. 3. A Flufs for Brittle Silver. CHAP. XXXIII. How to boyl Copper from the payment or old Silver in Coin d- Money, or from thin beaten Platts of Silver. C A A P. XXXIV. HflW^WProof-Ballances are to be made. SEttion 1. An Affayer able to make Ballances. a. How to help their de- feds. 3. Of the Scales. 4. Of the VVaretzs and Tong of the Bal- lance. 5. The Fork of theBallance. 6. How to prove the Ballance. 7. Of Gold-Solder to be ufed. 8. To make the Ballance look blew, 10. The XI.SCULPTURE Deciphered. CHAP. XXXV. of Filing and foyning the Proof-Scales or Ballances, £ b ] ' Sect,.