Praxis medicinæ reformata: = or, The practice of physick reformed Being an epitome of the whole art: wherein is briefly shewed, the true causes, signs, prognosticks, and cure, of most diseases. Published for the benefit of all persons. By Robert Johnson, Med. Professor.

Tinctura Chalybis, The Tincture of Iron, or Steel.

Take the finest Filings of Iron, or Steel, four Ounces; rectified Spirit of Nitre half a Pound; mix them together in an Ear∣then-Pan, well glazed, when the Efferve∣scency is over, let it cool, and add to it Spirit of Wine rectified, five Pound, mix it well together, then filter it through brown Paper, and keep it for use.

Both of these Medicines are great Aperi∣tives, opens all Obstructions, cures the Rickets, Green-sickness, Stoppage of the Terms, Yellow-Jaundice, &c. they streng∣then the Stomach, kills Worms, and puri∣fies the whole Mass of Blood.

You may give from half a Scruple, to half a Dram of the Salt, in any Vehicle, every Morning.

The Tincture may be taken from ten to forty Drops at a time, in Beer, Ale, or Wine.