[ 242 ] 



85. Ferrum. Bl uei ill -grey ; very hard, tenacious, and 



elaftic; exceedingly malleable; du£tile ; 

 attracted by the magnet; melting rn a 

 ^vhite heat; foliible in all acids, and giv- 

 ing the folution a black colour when ve- 

 getable aflringents are added to it: fpecific 

 gravity 7,788. 



86. Staxnum. Silvery-while; foftiOi; very malleable and 



dudlile; not fonorous; flexible, and crack- 

 ling when bent; melting eafily ; foluble 

 in all acids, and giving the folution a bitter 

 tafte : fpecific gravity 7,299. 



87. Plumbum. Blueilh-white; foft ; not fonorous; very 



malleable, and a little (lu£lile and tena- 

 cious; eafily melting, and during lique- 

 faction exhibiting iridefcent colours on the 

 furface ; foluble in all acids, and giving the 

 folution a fweetifh tafte: fpecific gravity 

 11,352. 



88. NlCCOLUM. Reddilli-white; hard; malleable; afiuming 



a green colour when heated, and acquiring 

 a purple tinge if the heat be continued; 

 atta£led by the magnet ; foluble in all 

 acids, and giving the folution a green 

 colour: fpecific gravity 9,000. 



89. ZXNCUM. Brilliant white with a (hade of blue; hardifli; 



a little malleable, but not dudile; llightly' 

 fonorous; of a fibrous or fcaly textufe ; 

 taking fire when heated to a (trong degree, 

 burning with a brilliant white flame and 

 emitting light white flakes; foluble in all 

 acids, and imparting no colour to the folu- 

 tion: fpecific gravity 7,190. 



B. Britth, 



90. BiSMUTUM. Reddifli-white, foft, brittle, of a lamellar 



texture; eafily melting; taking fire when 



^ heated to a ftrong red degree, burning 



■with a faint blue flame and emitting a yel- 

 low fmoke, depofning a white precipitate 

 if its folution in nitric acid be diluted with 

 •water : fpecific gravity 9,822. 



