Chap. 20.] DIFFERENT KINDS OF COPPEfc. 189 



culcs clothed in a tunic, 60 the only one represented in that 

 costume in Home : it stands near the llostra, and the counte- 

 nance is stern and expressive of his last agonies, caused by 

 that dress. There are three inscriptions on it ; the first of 

 which states that it had formed part of the spoil obtained by 

 L. Lucullus the general ; the second, that his son, while still 

 a minor, dedicated in accordance with a decree of the Senate ; 

 the third, that T. Septimius Sabinus, the curule redile, had it 

 restored to the public from the hands of a private individual. 

 So vast has been the rivalry caused by this statue, and so high 

 the value set upon it. 



CHAP. 20. THE DIFFKRKNT KIXPS OF COPPER AND ITS COM- 



JUNATIOXS. PYKOPUS. C.VMPANIAN COPl'KK. 



AVe will now return to the different kinds of copper, and its 

 several combinations. In Cyprian copper we have the kind 

 known as " coronarium," 71 and that called " regulare," 71 " both 

 of them ductile. The former is made into thin leaves, and, 

 after being coloured with ox-gall, 7 - is used for what has all 

 the appearance of gilding on the coronets worn upon the stage. 

 The same substance, if mixed with gold, in the proportion of 

 six scruples of gold to the ounce, and reduced into thin plates, 

 acquires a iiery red colour, and is termed "pyropus." 73 In 

 other mines again, they prepare the kind known as "regulare/' 

 as also that which is called " caldarium.'* 74 These differ from, 

 each other in this respect, that, in the latter, the metal is only 

 fused, and breaks when struck with the hammer, whereas the 

 " regulare'* is malleable, or ductile, 75 as some call it, a property 

 which belongs naturally to all the copper of Cyprus. In the 

 case, however, of all the other mines, this diii'ereuce between 

 bar copper and cast brass is produced by artificial means. Ail 



In the poisoned garment, which \vas the eventual cause of his 

 dvnth. 1. 



Ty The general who conducted the war against Mithridates. B. 



71 Sec B. xxxiii. c. 4G. " Chaplet" copper. 



7I * " Bar" copper, or "malleable." 



" 2 It is very improbable that this tflVct could be produced by the cause 

 here assigned ; but without a more detailed account of the process cm- 

 ployed, we cannot explain the change of colour. B. 



" J IIi'pciJTroc, " sparkling like lire." {Similar to, if not identical with, 

 our tinsel. ' ' Cast brass." 



T * Sue Bcckmana, Hist. Inv. Vol. I. p. -115. JJohn't Edition. 



