Volume 1

A course of chymistry. Containing an easie method of preparing those chymical medicines which are used in physick. With curious remarks and useful discourses upon each preparation, for the benefit of such who desire to be instructed in the knowledge of this art / [Nicolas Lémery].

  • Nicolas Lemery
Date:
1686
Catalogue details

Licence: Public Domain Mark

Credit: A course of chymistry. Containing an easie method of preparing those chymical medicines which are used in physick. With curious remarks and useful discourses upon each preparation, for the benefit of such who desire to be instructed in the knowledge of this art / [Nicolas Lémery]. Source: Wellcome Collection.

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    Poe: oo = = <? <>? <P So OO SS No ~- = — = _ ————————— a — > : = a cy = = ~ = ~ ¥ — = ES ee ——es Se ee Regalis diflolves Gold, whenas Aqua fort cannot meddle with it; on the contrary Agua fortis dif- folves Silver, but can do nothing with Gold, and fo of the reft. As for Alkali’s, they are foon known by pour- ing an acid upon them, for prefently or foon af- ter, thererifesa violent Ebudition, which remains until the acid finds no more bodies to rarifie. This effect may make us reafonably conjecture that an Alkali is a terreftrious and folid matter,whofe pores are figured after fuch a manner that the acid points entring into them do ftrike and divide whatfo- parts of which the -A/kgli is compounded, are more or lefs folid, the acids finding more or lefs refiftance, do caufe a ftronger or weaker Ebulli- tion. So we fee the Effervefcency that happens in the diflolution of Coral is very much milder than thatin the diffolution of Silver. - There are as many different Alkal:'s, as there are bodies that have different pores, and this is the and with another not atall; for there muft be a due proportion between the acid points, andthe pores of the Alkals. . The nature of Alkals’s being thus eftablifhed, there will beno need of flying to an imaginary fale in Plants for explication of the Effervefcency , and ?twill be eafily conceived thatif an Alkali fale is full of a terreftrious matter that renders it porous like other -Alkali’s, it muft caufe an Ebullition. That which I faid, fpeaking of Volatile /alrs, may here be added, that the ]gneous particles breaking in through the Pores of the Alkali /alr, eae moizog they <a = — ee —————— = = SS ai tote tg tt AOS SO == ——— ee a a