MicrocrarHtaly’ 
water a ‘Tittle before! boyling,: next’ the fides: of the Vettel, 
There wete ‘alfo fome the like Bubbles on. the Surface of the 
water jult over it, as if either fomeexhalations,.came. out of i It 
-ortharit did excite fome ferimencationt in the ey of the water 
contiguous tot. 
There was little fenfible diffesionse in (ioceadlgeie of this 
Stone,before the putting under water,and after: To be fure the 
milky-mbite parts continued as before, but an difference: in 
weight then in the former. For whereas before the p putting 
into the: water the: weight. was 1822. Graines,.....After it had lyen 
in about four and twenty hours the weighe was 2 204 Bab fo 
the difference was, 1: a = OnGiIeS..... 
- The fameStone was infufed in the water cing hot vat fo 
seit for awhile after it was cold, but’ gotno more weight 
then upon infufing in the cold, neither was onion feefible 
Difference in the veal bah times, | is 
In which Pu peridiniie chete are wc Oblervablesihgsipammiaaial 
feltly to: prove the porouthels of theft: feemingly clole bodies:. the firtt 
_istheit acquiring a tranfparency, and lofing their whitene& after fkeeping 
in water, Thick will feem the more frrongly to argue Bai if ele kha 
already faid about the making tranfparent, or clarifying of fomebodies, 
as the white powder of beaten Glafs, and the Goths: of fome glutinous 
tran{parent liquor be well conlider'a 5 for thereby it wilh feem rational 
to think that this tranfp arifes from the infinuation of the water 
(which has much the “he refraction with {uch ftony particles, as may be 
verd by Sand view’d with a Microfcope)into thofe pores which were 
oy repleat with air (that has a very differing refraction, and con- 
ome ae very reflective) w ich feems to be sonia d by the fecond 
€, namely; ‘theincreale of weight after fteeping, and decreafe 
on drying. And thirdly, feem'd yet more fenfibly confirm’ d by: the mul- 
Utude blesin the laft Experiment. i 
~ We find alfo moft Acid Soles vey readily to diftaivecand fipandte the 
Pariof this ohana one fromanother 3 which is yet-a further Argument to 
he poroufnefs of bodies, and will ferve as flich, ta thew that 
eee ge o hasan abundance of pores in it,fince there are feveral li- 
5 Webra with long ftaying ina Glafi, will fo Cerrade and ear imtoit, as 
at laft, ree nase to the liquor it contain d, ob elace have 
“Since e re we find by other proof, that any of thofe bod ae 
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