- ( ^ ) 
they turn round. As for the Stem, I break it off as 
near the Ball as I can, and lodging the remainder of 
this Stem between the Plates, and by drilling the Hole 
exattly round, all this Protuberance is bury’d between 
the Plates, and the Aficrofcope performs to Admiration 5 
infomuch, that the fame Thread of very fine Muflin 
appeared 3 or 4 times bigger in one of thefe, than it 
did in the firft or fecond of Mr. Wilfons. I thought I 
faw Animals in fine Old Brandy, but they were fo nim- 
ble in their Motion, that I can give no particular De- 
fcription of them. Human Blood is fo far from (how- 
ing any Red Globules fwimming in Serum , that imme- 
diately after it* Emiffion it appears to be a Body of in- 
finite Branehes, running in no certain Order, varioufly 
colour’d 3 where it lies thickefi: on the Glafs, its of a 
dull Red, where thin, inclining to Yellow 5 but the 
whole fo blended as to reprefent very near the top of 
a Yew-tree in a very fine Landskip, having its fuppofed 
Branches of a red and yellow coiifufedly intermixr. 
But not fatisfy’d with this appearance, tho’ the fame as 
,to quality in Eleven different Glaffes, and as many dif- 
ferent forts of Blood, I refolved to view it another 
way, which was, by diluting one third of th'ck in the 
Serum of Blood*, and laying it upon my Glafs, I could 
fee the red Branches as before, and the tranfparent fill’d 
with Particles of great variety of Figures, which I took 
to be the Salts of the Blood, but feweft Globular, and 
they were pellucid. 
If the Fluids moving in an Evanefcent Artery appear 
Globular, I fuppofe its becaufe the Canal is round 
which alters the cafe much. 
J had 
