202 PHYSIOLOGICAL REMAINS. 



Temper is thus made : the dross of pure tin, four 

 pounds and a half; copper, half a pound. 



3. Brass is made of copper and &quot; calaminaris.&quot; 



4. Bell-metal. Copper, a thousand pounds ; tin, 

 from three hundred to two hundred pounds ; brass, 

 a hundred and fifty pounds. 



5. Pot-metal, copper and lead. 



6. White alchemy is made of pan-brass one 

 pound, and u arsenicum&quot; three ounces. 



7. Red alchemy is made of copper and auripig- 

 ment. 



There be divers imperfect minerals, which will 

 incorporate with the metals : being indeed metals 

 inwardly, but clothed with earth and stones : as 

 &quot; pyritis, calaminaris, misy, chalcitis, sory, vitriolum.&quot; 



Metals incorporate not with glass, except they 

 be brought into the form of glass. 



Metals dissolved. The dissolution of gold and 

 silver disagree, so that in their mixture there is great 

 ebullition, darkness, and in the end a precipitation of 

 a black powder. 



The mixture of gold and mercury agree. 



Gold agrees with iron. In a word, the dissolution 

 of mercury and iron agree with all the rest. 



Silver and copper disagree, and so do silver and 

 lead. Silver and tin agree. 



The second letter of the cross-row, touching the separa 

 tion of metals and minerals. 

 SEPARATION is of three sorts ; the first is, the 



