The London dispensatory, reduced to the practice of the London physicians wherein are contain'd the medicines, both Galenical and chymical, that are now in use ... / by John Pechey ...

Cream of Tartar, in Latin, Cremor Tar∣tari.

Boil in a great deal of water what quantity of white Tartar you please, until it be all dissolved, pass the liquor hot through Hippocrates's sleeve in∣to an earthen ves•••••• and evaporate about half of it; set the vessel in a cool 〈…〉〈…〉 three days, and you'll 〈◊◊〉〈◊◊〉 ••ri••tals on the sides, which you are to separate, evaporate again half the liquor that remains, and remit the vessel to the Cellar as be∣fore, there will shoot out new Cristals; continue doing thus till you have gotten all your Tartar.

Virtues. Crystal or Cream of Tartar is Aperitive•• good for dropsies and astmatical persons, it is also purgative, but it is most commonly used with other purg••s to quicken them.

Dose. It may be given from half a dram to three drams in some proper liquor.

Oyl of Tartar per deliquium is made by expo∣sing Salt of Tartar in a Cellar, in a wide glass vessel.

Virtues. It's used for tettars, and to discuss tu∣mors; Ladies mix it with Lilly water, to clear the complexions, and to cleanse their hands.