MiIcROGRAPHIA. 
and Difcords with thefe, as theremay be with mufical firings. Having © 
therefore feen whatis the caufe of Congruity or Incongruity, thofe rela 
tive properties of fluids, we may, from what has been faid, very eafily 
collect, what is the.reafoz of thofe Relative proprieties alfo between fle 
id bodies and folid 5 for fince all bodies confilt of particles of fuch a Sub 
france; Figure,and Bulk; but infome they are united together more firm- 
ly then to be loofened from each other by every vibrative motion (though 
I imagine that there!is no body in the world, but that fome degree of a- 
gitation may, as I hinted before, agitate and loofen the particles fo as to 
make them fluid) thofe cobering particles, may vibrate in the fameman- _ 
ner almoft as thofe that are Joofe and become wxifons or difcords, ast 
may fo: fpeak, to them. Now thatthe parts of all bodies, though never _ 
fo folid,. do yet vibrate, 1 think we need gono fnrther for pf@of, then 
_ that, all bodies have fome degrees of heat in them, and that there has not 
been yet found any thing perfectly cold: Nor can] believe indeed thatthere 
is any; fach thing in Nature, as a body whofe particles are.at res/, gr lazy 
and wxzatlive in the great Theatre of the World, itbeing quite contruryto 
the grand Oeconomy of the Univerfe.. We fee therefore what isthe rea- 
fon of the /ypathy.or uniting of fome bodies together, and of the amti- 
Bema flight of .athers from each other : For Coagruity feems nothing 
elfe but a Sympathy, and Incongruity an Antipathy of bodies; hence fimi= 
Jar bodies once yuited will not eafily part, and diffimilar bodies once diff 
joyw'dwill not eafily unite again; from hence may be very eafily deduc’d 
the reafonof the fnfpenfion of water and Quick-filver above their ufual flee 
tion, as1 {hall more at large anon fhew. ~ \ eee 4 
-,d-hefe properties therefore (alwayes the concomitants of fluid bodies) 
produce thefe following vifible Bfeds.: ROUT TOGED 5/3 tokeal 
. Firft, They unite the parts of a fluid to its fiwilar Solid, orkeep them 
stick to Gold, Silver, Tin, Lead,&c.. and unite with them: but rov/off from 
Wood, Stone, Glafs, &c. if never {0 little {cituated out of its horizontable- 
vel, and water that will wet falt and diffolve it, will ip off from Tallow 
orthe like, without atiall adhering; as it-may likewife be obferved to — 
do upon,a.difly fuperficics:, And next they caufe the parts'of homogenes 
4} {uid bodies readily to’ adbere together and mix, and of heteragenealto 
be exceeding everfethereunto. Hence we find, that two {mall drops of 
waters, onany fuperficies they can roul on, will, if they chancetotouch — 
each other, readily unite and mix into one 34 drop: The like may be ob-— 
ferved with two mall Bowls of Quick;filver upon a Table oF Gla, pro~ 
vided. their furfaces be:not dufty; and with two. drops of 0y/ upon fair 
water, Ge. ..And further, water put unto wine, falt water, vine. ar, fpirit 
of wine,or the like, does sinesdeal etalbschet, if they be pelts to. 
ge: difperfeit {elf allover them. Hence, on the contrary, we alfo 
, that Op! of Tartar poured upon Quick-filver; and Spirit of Wineon 
that Qjl,and Oy! of a2 <a eepene neprert ers: Air upon that Oy/,though — 
they: efi clofely: pinto a Bottle, ‘and foahen- never fo much) * they. 
= by:né:means long fuffer any of their bigger parts to be wnited or in- 
IG ; 
cluded 
