I

( '56 )

PRÄPARAT A E FERRO,

PREPARATIONS OF IRON.

FERRUM AMMONIACALE.Ammoniacal Jron.

*"Tp A'KE of iron Filings one pound.

Sal aramoniac two pounds.

Mix, and fublime. What remains at thebottom of the veffel mix by rubbing togetherwith the fublimed matter, and again fub-lime.

R E M A R - K.

To fucceed in this preparation, (the Flores Mar-tis of the laft Difpenfatory,) Lewis fäys, it will beufeful to mix well the ingredients, to moiften themwith a little water, to dry the mafs, and to powderit in an iron mortar, reoeatino- this thrice. In thisdireftion he is followed by the Swedifli Difpenfa-tory.