( 19 ) 



White alchemy is made of pan-brafs, one 

 poundj and arfenicum, three ounces. Red alche- 

 my is made of copper, and auripigaientum^ oror- 

 piment f . 



The author of a tra6l, entitled, Serious Reflec- 

 tions on the dangers attending the ufe of copper 

 veflcls, publifhed at London in 1755, aderte, that 

 " the greater frequency of palfies, apoplexies^ 

 madnefs, and all the frightful train of nervous 

 diforders, which fuddenly attack us, without our 

 being able to account for the caufe, or which gra- 

 dually weaken our vital faculties, are the poifon- 

 ous effects of this pernicious matter, taken into 

 the body infcnfibly with our victuals, and thereby 

 intermixed with our blood and juices'*. 



However this m.ay be, it is certain, that tJicrc 

 have been innumerable inilances of the pernicious 

 confequences of eating food dreffed in copper 

 vefTels, not fufSciently cleaned from this ruil. 

 On this account the Senate of Sweden, about the 

 year 175.3, prohibited copper vellels, and or- 

 dered, that none, but fuch as were made of iron, 

 (liould be ufed in their fleets and armies. 



t Lord Bacon's Phyf. Remains. 



C 2 fiut 



