§ 199.

FERRUM nativum (iron) native, united to arſenic. Arſenical.

Cronstedt Min. § 243. B. Miſspickel.

§ 200.

FERRUM (iron), with the power of attracting other iron. Loadſtone.

Cronstedt Min. § 211. b. Magnes.

The cauſe of this property is yet unknown.

§ 201.

FERRUM (iron), with phlogiſton enough to render it magnetic. Magnetic.

Cronstedt Min. §§ 212, 213.