( 4" ) 



loo Parts. Mercury. 



Native calx of mercury 9 fixed air, and 91 



mercury. 

 Vitriol and marine falts of dittQ About 70 



mercury. 



Cinnabar-~>'2o Sulphur, and 80 mercury. 

 Pyritous ore of mercury Cobalt, arfenic, 



pyrites, I of mercury. 



joo Parts. Zinc. 



Vitreous Ore, Zinc, Spar 28 Aerial acid, 6 



iwater, \ iron, and 65 calx of zinc. 

 Tutanego Iron, argill, and from 60 to 90 of 



zinc. 

 Ca/amine-*-lron, clay, rarely calcareous earth 



or lead, 30 to 84 calx of ditto. 

 Zeolytic ore* Quartz, water, and about 36 



calx of zinc, 

 Blende, pfedogahna blue 8 iron, 4 copper, 



26 fulphur, 4 water, 6 filex, and 52 zinc. 

 Ditto black I Arfenic, 9 iron, 6 lead, 29 



fulphur, 6 water, 4 filex, and 45 zinc. 

 Ditto red 5 Iron, 1 7 fulphur, 5 water, c 



argill, 24. quartz, and 44 zinc. 

 DittO) phofphoric 5 Iron, 20 fulphur, 4 



fparry acid, 6 water, i filex, and 64 zinc. 

 Ditto grey Galena, petrol, fulphur, 24 zinc. 



too 



