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 ...

Common Regulus of Antimony, in Latin, Re-Regulus Antimonii.

Take sixteen ounces of Antimony, twelve oun∣•• of crude Tartar, and six ounces of Salt Petre ••ri••ied, powder them and mix them well together, ••n heat a large Crucible red hot, throw into it a ••onful of your mixture, and cover it with a tyle ••il the detonation is over, continue to throw into •• Crucible spoonfuls of this mixture, one after other, until all of it is spent, then light a great •• about it, and when the matter has been some ••e in fusion, pour it into a Mortar or an Iron ••uld greased with Suet and heated; then strike •• sides of the said Mould or Mortar with Tonges, make the Regulus precipitate to the bottom; ••en it is cold, separate it from the dross that re∣••ins at the top of it with a hammer, and after •• have powdred it, melt it in another Crucible, 〈◊〉〈◊〉 throw into it a little Salt-Petre, there will rise ••e little flame from it; then pour out the matter •• an Iron Mortar well cleansed and greased, let ••ool, and you have four ounces and an half of ••ulus; if you melt it over again, and form it

into balls of the bigness of a Pill, you have a per•• petual Pill; that is to say, such as being taken an•• voided fifty times, will purge every time, yet ther•• is hardly any sensible diminution. This Regulus 〈◊〉〈◊〉 melted in a Crucible, and then cast into Moulds t•• make Cups, but it is somewhat hard to do it, by rea∣son of a sharpness in the Regulus, that hinders i•• parts from uniting, so as to spread well; if ••o•• put white Wine in these Cups, it will Vomit lik•• the Emetick Wine.