After the Ao[ua fortis had ftood about two Hours 
on the Red Corral, I took a little of that Whitilh Mat- 
ter that had funk to the Bottom of the Glafs, and put- 
ting it upon a clean Glafs Plate, I difcover’d an unfpeak^ 
able Number of long Particles, that lecm’d juft like the 
very fine Plair of one’s Beard after it had been fliavcd off 
two or three Days. ' 
I took alfo fome of the upper part of t\\Q Aquafortis tlut 
was clear, and pouring It upon a clean Glais, I likewife 
difcover’d therein a great many long Particles, fuch as 
are mention’d before; and wJien I examined more ftrid- 
iy into that White Matter that had fubfided to the bot- 
tom of the Glafs, I found that ’twas notliing elfe than 
the llender Particles abovementioned, fome of which 
were longer tlian the reff. 
' The Aquafortis having not been fufficient to dilfolve 
all the Corral, I added a little more to it, and then ob- 
ferved, that in a fliort time the remaining part of tlie 
Corral was not dilfolved, faving that a very few Parts, 
which were compofed of much fmaller, for rather thofe 
fmaller were again coagulated/' floated upon the top of 
the Water, but ’twas impof^ible to difeover of what Fi- 
gure they were ; and then tliQ Aqua fortis which had been 
impregnated with the Red Corral was very clear, but 
when I came to view it thro’ a Microfeope, I difco- 
ver’d, that there were flill an unfpeakable Number of 
the albrefaid long Particles floating therein. 
I placed the faid very fmall Particles before a Glafs, 
which magnified much more than that I had already u- 
fed, and then I difeovered fuch exceeding flender Parti- 
cles, as did almoft efcape my fight, and which, I fup- 
pofe, were altogether invifible before. 
With this Glafs Ldifeover’d long Particles, which did 
not only exceed the reff in length, but in thicknefs too, 
and the Ends of which were blunt ; and having difco- 
ver’d in fome few of them three difldnd Tides, I con- 
T 2 * ' eluded 
