( 3 6 7 )

XIX. I ha ve found a Suhhureous Spirit, which being mixt with a Vola- , ^ Clc *' Sul -ttle Alkali* such as Spirit oi Sal Armoniack, or 'L bine, &c. gave it a Red whLhbL/m^sColour in a Moment. I make the Spirit by Distilling 2 or 3 Pound of Ben-X,oin with a little Sand in a Retctt, ad Siccitatem, and put the Oyl, Sp:rtt Redcoloür '■ byand Flowers altogether imo a Paper Filtre , and the Spirit conus firfi thro\ ^ g d ' v ' Coks ’You may put 2 parts of this Spirit to cne of Spirit ot Sal Armcniack , and ** ' f ’ ""

sliake the Glasi or Bottlc and it will be Red in a Moment, though both theLiquors were ciear before ; and the more the Gluss is (haken the Deeper orBlacker Red it will be. It> produces this Effect without any Effervefcence :

This Experiment may perhaps be ferviceable in the demonstrating ofSanguification.

XX. To make th e firß of these Liquors, put a sinall Handsnl os Dryed T „ o0earln _Red Roses into a Glass Bottle, pour on them Reltiffd Spirit of Wine till it flamimbie u-cover them an Inch. Let them Infuse in the Gold all together in the Bottlefor 4 or 5 Hours, then Pour off the Spirit of Wine, which will be Ciear carnatio»' co-

and have No Colour. . Oeossro^».

This Second Liquor is made by putting into scme good Spirit of Wmc p-forne Drops of good Spirit of Vitrici, or Oyl of Sulphur, so that si;arce canthe Acid or Souer be discover’d by the Tongue.

If you put a little of this Last Liquor into the First, it will give aFine Rcddist Colour without any Effervefcence or other sensible Alte*

ration.

If instead os this Wine mixed with Acidi, you put to the First forne Dropsof any Volatile Alkalies, as of Spirit of Sal Armcniack , or other, it will givea G? em Colour to the Infusion.

XXI. An Irgenious Teacher of Mathematicks , having occasion to make ^ßrM&ijs dt-a Composition for a new f» e-Engine , whtreof he was to sltew his Ma* |" ov "’8 l d v l° r ’jelty a Iryal, Mmgled divers Ingredients m an Earthcn Pot, over kindled Boyie. n. 175.Coals ; burcould nor, or did nor, do it so warily, but that the Matter took t- n3? -Fi re, and began toBlaze furiouffy; which obliged him to stiffle the Flame asbastily ashe cou’d : And having remov’d the Vcffel from the Fire, and scf-fered it to grow Gold, when aVterwards he came to look upon it, to sie ifwhat remain’d might be of any use to him, he was furpriz’d to find itVariousty and Brfkly Moved. Wherefore having set it aside, and to befüre that it might be thoroughly Gold, he aster forne Hours visited itagain, and found it Move as before. And having caft store of Seeds uponit, to sce it the Liquor would Move them also, the Bituminous part of itconnected them into a kind of thickScum, that covered most of the Super-ficies; butyet lest sonte Intervals, in which the Liquor appear’d, and Dis-cover’d that it continu’d its Motioni. Two Days aster, the Engineer dis-coursing with me of his Fire-Wcrk, about which he had advis’d with me be-fore; told me among other things, of this Odd Accident. And when Ihad ask’d him» if the Motion continu’d still, and had been anfwer’d affirma-

tively,