230 The Canfes of Mixture. Lea. ji 
5. $. Digeftion. For which there isthe fame reafon, as for Mixture, 
by Solution. For, Firft, All heat doth attenuate, that is, (till further 
Jiparate the parts of a Body 5 'and fo render them more mingleable with 
the parts of another. And therefore, Secondly, Doth alfo add more 
Motion to them, in order to their Mixture. 
6. $. Agitation. Which I am induced tobelieve a great and effectual 
means of Mixture, upon divers Confiderations. As, Firft, That the 
making of Blood in the Bodies of Animals, and the mixing of the Chyle 
therewith, is very much promoted by the fame means 5 fe. by the hi. 
tation ofthe parts of the Blood and Chyle, in their continual Circulation. 
Again, from the making of Butter out of Milk, by the fame means + 
whereby alone is made a féparation of the oleous parts from the Whey, 
and Conjunétion of the Oleoms together. Moreover, From the great 
Effects of Digeftion 5 well known to all that are converfant in Chymical 
Preparations. * Which Digeftion it {elf isbuta kind of infenfible agita- 
tion of the parts of digested Bodies. - "Tis alfo a known Experiment , 
That the readieft way to diflolve Sugar in Wine or other Liquor is to 
give the Veffel a hafly turn, together with a Smart knock, agaiolt any 
hard and fteady Body : whercby all the parts of the Sugar and Liquor, 
are put into a vehement Agitation, and {o the Sugar immediately diffol- 
ved, and mixed with the Liguor.| -And I remember, that having (with 
intent, to make Mr, Matthews’s Pill ) put fome Oy! of Turpentine and 
Salt of Tartar together in'a Bottle, and fent it up hither out of the 
Country; I found, that the continual Agitation upon the Road, forthree 
or four days, had done more towards their Mixture 3 than a far grea- 
ter time of Digeftion alone had done before. And it is certain, That 
a vehement Agitation, efpecially, if continw'd, or joyned. with Dige- 
fiions will accelerate the Mixture of fome Bodies, ten timesmore, than 
any bare Digeftion alone 3 as may be proved by many Experiments, 1 
will inftance in this one. Let {fome Oy! of Turpentine and good Spirit 
of Nitre be ftop'd up together in a Bottle, and the Bottle held to the 
Fire, till the Liquors bea little heated, and begin to bubble. Then 
having removed it, and the Bubbles by degrees increafing more and 
more; thetwo Liquors will of themfelves, at laft fall into fo impe- 
tuous an Ebullition,as to make a kind of. Explofion; {ending forth a fmoak 
for the {pace of almoft two yards high. Whereupon, the parts of both 
the Liquors, being violently agitated, they are, in a great portion, incor» 
porated into a thick Balfamin a moment: and that without any intenfe 
heat, as may be felt by the Bottle. And thus much for the Canfes of 
Mixture. 
CHAP. 
