Sc£t. 16. Of Salts.

«beaten to a fine Pouder; mix the Vifiera.' them well, and put them into a' good earthen or coated glafs Re-

* tort: place it in an open Fur-

* nace, lute a Receiver, and kindle' a Fire under it; which keep in the« firil degree till ibme red Fumes« appear in the Recipient; neither

* augment it till thofe Fumes diiâp-' pear; then increafe to the fecond,« which will raile more red Fumes;

299

Its Dofe is from 10 tofo Drops, in fome fort Vehicle;for thefe corroiive fharp Diureticsought to be given in fuch things,whereby their Points are betterguarded from Mifchief,and their Ef-ficacies alfo rather promoted thanhinder'd. Vid, Explication of the O-peration of Diuretics, Seót. f.

This is alio made with much lefs

trouble than the former; for in

« when they begin to decrcalè, raifè that, if the Nitre is not very pure

it to the third, and ib on to thefourth, and utmoft degree of

* Heat, till no mo-e Clouds come

* over : then let out the Fire, and

* as foon as it is cool enough, takec off the Receiver, and put the Spi-

* rit into a Glafs, with a glafs or' wax Stopple.'

This Spirit is too corroiive to bemuch ufed internally, tho ibme or-der it from lo to jo Drops in anyconvenient Vehicle. Its chief ufe isto difiblve Metals, and fit them forPreparation.

Spiritus Nitri cum Oleo Vitrioli,

Spirit of Nitre with Oil of Vitriol.

' ' Put ft i. of Salt-Feter into a

* glafs Retort, and pour upon it ft i.« of Oil of Vitriol, and of Spring-< Water 5 xii. mix them, but avoid« the Fumes i then place the Mixture, in a Sand-Furnace; lute on a Re-t ceiver, and give a Fire of the firft

degree two hours, advance to the

fecond, where keep it two hours

' longer, and fo on to the third and

' fourth, giving two hours to each

' degree, in which time the Opera-

* tion will be ended. When it is' cold, take off the Receiver, and' put the Spirit in a Phial ftopt with' Wax, or a glafs Stopple/

This Spirit anfwers ail the Endsof the former, and is much betterin internal Ufe, where it is verydiuretic, and a good Clean 1er of

and dry, and thorowly feparatedfrom common Salt, which is in allunrefined Nitre, it will produce anuiqu* Regia. And if it be not dry,it cannot be made into fuch a finePouder as is requinte to keep itfrom melting together, by whichthe Emiffion of its Spirits would behinder'd. And to anfwerthe Chargeof the Oil of Vitriol, there will beprocured at the fame time the

SalEnixum Paracelfi, Paracelfus'iSal Enixum.

' This is only the Rendue of the' former Spirit, which remains in' the Retort, of a white Colour' and pleafant acid Tafle. If it be' diflblv'd in'hot Water, and cryf-' talliz/d, it will be yet a more ele-' gant Medicine, and endu'd with' the fame Virtues as theTartarum' Vitriolât um.'

Its Operation is Diuretic. TheDofè is from q i. to 5 i. in Brothor Water-gruel.

Spiritus Nitri Dulcis, Stoeet Spirit

of Nitre.

' Put into a Retort of Spirit of' Wine tartar¡z.'d¡kís. to which add' Spirit of Nitre 5 iv. by a little at' a time : a crackling wi!i/aifuft up-' on the mixture; and Tftfeff vwffl ~is' over, put in more, and fo pro- •' ceed till all is in. Then (hake• them well together, and place the»• Retort