i$2 THE HISTORY OF CHEMISTRY, 



mentioned by Avicenna and Rhazis; and 

 curius dulcis by Crollius. B. Valentinus hints 

 obfcurcly at the Mercurius pracipitatus ruber, 

 to which Crollius gives the name Arcanum Co* 

 raUliutm Paracfljl. Crollhis defcribes the .SW 

 Jovh a lfo t a Salt of tin and acetous acid. In 

 B. Valentinus \ve find an account of the Salt oi* 

 Lead In chrylYuls, being a combination of lead 

 and acetous acid, and which he names Siiccba- 

 rwn Saturn!. lie likcwifc makes mention of 

 the Butter or* Antimony. The white Precipi- 

 tate obtained from antimony by water, h the 

 Mcrcurlum l''iirt of Puracelius, and the Puhis' 

 iittgettcits of Algaroth. The fume Butter of 

 Antimony, dephlo^ifticated by means ot the ni- 

 trous acid, gives a powder which CrolUus cal- 

 led slntiiH'jnhim diapbomiann, and Begninus 

 jRezwirdicum mineral?. 7'armntm emeticum v. as 

 i}rii ufed by Mynllcht. J>. Valcptiims and 

 i'aracelfus obferved, that Sal Ammoniac com- 

 bincd with metallic fubflanccs, and fublimed, 

 produced flowers containing metals. Of the 

 Vitriols, the principles of the blue were known 

 to Galcnus, thoie of the green to B; Valenti- 

 nus ; and the white alfo, though its compofition 

 was not well underflood, yet was certainly 

 made in this period. 



Of the earths very little was known, and' 

 even that liitlc was unfupported by the princi- 

 ples of cheniiflry. They difcovcred, however, 



