Microcrap — 32 
> > . 
g + 5S ites 
753 * a Jiid 
ark (stele 
; | » ni de arse i 
Obferv. VII. Of fome Phenomena i ci phe 
6 De Glafs Drops are {mall {parcels of coarfe green n Gla cake sak 
the Pots that contain the Asetal ( asthey callit’) in fufion) upon the 
end of anIron Pipe ; and being exceedin ng hot, and aay of a: ind of 
fluggith fluid Confiftence, are fuffered to drop from thence into a a Buicket 
of mold Water, and in it to lye till they be grown fenfibly cold. 
Some of thefe I broke in the open air, by fhapping offa te oP é 
fmall ftem with my fingers, others by cruthing i it witha {mall pair ‘of ih 
ers; which I had no fooner done, thenthe whole bulk of the dro aie Hew 
violently, with a very brisk noife, i into multitudes of. fmall pieces, Bets aot | 
which were as {mall as duft, though in fome there weré' remainir 
retty large,without any flaw at all,and others very muth flaw’ d, ha 
by rubbing between ones fingers was eafily reduced to duff’ ce di- 
fperfed every way fo violently , that fome of them pierced my skin.” ‘tT 
could not find, either with my naked Eye,or a Aficrofcope, that any-of the 
broken pieces were of ar ome figure.nor any one like another; “but'for 
the moft part thofe that flaw'd off in large pieces Were = prettily’ bran- | 
ched. ;§ 104971 3 ABS 9i23 . 
The ends of others if rien dips Inipt off whilff | aa the dies 
ends of them lay buried under the water, which, like’ the fo mer, fh ral 
to pieces with as brisk a noife, arid as ftréng amoron, "©" fe 
. Others of thefe I tried to break, by grinding away the bunt end: and 
though I took afeemingly good one; and had groutid ‘away Heer two | 
_ thirds of the Ball, yet would it not fly to pieces, ‘but now and then {nie — 
{mall rings of it would fnap and fly off, not withdut a i brisk th 7 
quick motion,leaving the Surface of the drop whenceit flew very'prétti- | 
ly branched or creafed ; which was eafily difcoverable'b} the’ Micr oftope 
This drop,after I had thus ground it, without at all impairing theren 
that wasnot ground away, I caufed to fly immediately all 
the nipping off the very tip‘of itsflender‘end. 9°" bet 
Another of thefe drops I began to grind away ae all nd 
had not worn: away on the ftone above'a ‘quarter ‘of afinch ‘be 
_ whole drop flew with a’ brisk crack into fand or fitall' dit; | 
it have held fo long , had:there not beena little’ flaw itt the ethiat Y 
ground away, as] afterwards found. Cl en Agid es SSA eh gob 
_ © Several others of thefe’ drops I covered over witl ‘a srk 
skin of Icthyocol/a, which being very'tough and very ttanfparent: 
rom convenient fubftance for: thele e'tryals that I cotild: ini having 
fay; feveral of thef-drops in this tranfparent Glue Wwhilft HOE, <2 ne 
to: hang by a ftring tied*about the end of thet ti 
were cold, ‘and the skin pretty tough3’ aa ag 9, 
eee a 
ah Pa 
