But the quantity of phlogiſton is far ſhort of that which is neceſſary to render it ductile, for a centenary hardly contains more than three cubic inches of inflammable air.
FERRUM calciforme (iron calciform), ſimply deprived of phlogiſton. Ochrous.
Cronstedt Min. §§ 202–206. Bloodſtone.
FERRUM (iron), mineralized by aerial acid, calcareous earth, and manganeſe. White.
Cronstedt Min. § 20. Minera ferri alba.
FERRUM (iron), mineralized by ſulphur. Pyritical.
Cronstedt Min. § 152. Pyrites.