492 



BOOK XI. 



The fourth wall is one hundred and fifty-one feet long. The height of each of 

 these walls, and likewise of the other two and of the transverse walls, of 

 which I will speak later on, is ten feet, and the thickness two feet and as 

 many palms. The second long wall only is built fifteen feet high, because 

 of the furnaces which must be built against it. The first long wall is distant 

 fifteen feet from the second, and the third is distant the same number of feet 

 from the fourth, but the second is distant thirty-nine feet from the third. 

 Then transverse walls are built, the first of which leads from the beginning 

 of the first long wall to the beginning of the second long wall ; and the second 

 transverse wall from the beginning of the second long wall to the beginning of 

 the fourth long wall, for the third long wall does not reach so far. Then from 

 the beginning of the third long wall are built two walls — the one to the 

 sixty-seventh foot of the second long wall, the other to the same point in 

 the fourth long wall. The fifth transverse wall is built at a distance of ten 

 feet from the fourth transverse wall toward the second transverse wall ; 



von Hiiite-Werken, Braunschweig, 1738). Karsten {System der Metallurgie V. and Archiv fiir 

 Bergbau und HiiUeJiwesen, ist series, 1825). Berthier {Annates des Mines, 1825, II.). Percy 

 (Metallurgy of Silver and Gold, London, 1880). 



Nomenclature. — This process held a very prominent position in German metallurgy 

 for over four centuries, and came to have a well-defined nomenclature of its own, which has 

 never found complete equivalents in English, our metallurgical writers to the present 

 day adopting more or less of the German terms. Agricola apparently found no little difficulty 

 in adapting Latin words to his purpose, but stubbornly adhered to his practice of using no 

 German at the e.xpense of long explanatory clauses. The following table, prepared for con- 

 venience in translation, is reproduced. The German terms are spelled after the manner 

 used in most English metallurgies, some of them appear in Agricola's Glossary to De Re 

 Metallic a. 



English. Latin. German. 



Blast furnace Prima fornax Schmelizofen 



Liquation furnace Fornax in qua argentiim et plumbum ah Saigernofen 



aere secernuntur 

 Drying furnace Fornax in qua aerei panes fathiscentes Darrofen 



torrentur 

 Refining hearth Fornax in qua panes aerei (orrefacti Gaarherd 



coquuntur 

 Cupellation furnace Sectmda fornax, or fornax in qua plum- Treihherd 



bum ah argento separalur 

 Misiura 



Siillare, or distillare 

 Torrere 



Aes ex panibus torrefactis conficere 

 Panes ex aere ac plumbo misti 



Leading 

 Liquating 

 " Drying " 

 Refining 

 Liquation cakes 

 Exhausted liquation 



cakes 

 " Dried " cakes 

 Slags : 



from leading 



,, drying 



,, refining 

 Liquation thorns 



Thorns from " drying " 



,, ,, cupellation 

 Silver-lead or liquated 



silver-lead 

 Ash-coloured copper 

 Furnace accretions or 

 " accretions " 



Panes iorrefacti 



Recrementa (with explanatory phrases) 



Spinae (with explanatory phrases) 



Stannum 

 Aes cinereum 



Frischen 



Saigern 



Darren 



Gaarmachen 



Saigerstock 



Kiehnsiock, or 



Kinstocke 



Darrlinge 



Frischschlacke 

 Darrost 

 Gaarschlacke 

 Saigerdorner, or 

 Rosidorner 

 Darrsohle 

 A hstrich 

 Saigerwerk or saiger- 



hlei 

 Pickschiefer or schifer 



Offenbriiche 



