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-veffels, that were not the tenth part of a hairs breadth 
diftant from each other. 
I could not^ with the ftrideft obfervation, difcover 
the Courfe of the Arterial Blood, but I could fee, even 
in the fmalleft of the Legs, three Veflek together that 
convey 'd the Blopd <iireaiy to the Heart. 
Notwithftanding that this Creature is by the Ancients 
efteemed a Bloodlefs Infedt, becaufe they could difcover 
no red matter in the Body when they kiird it, or crufb'd 
it to pieces, yet I did perceive fome particles of Blood, 
which according to all appearance were Spherical, circu- 
lating in a liquid matter, as plainly as if you were to (ee - 
fo many fmall Peaft rolling oft^a gentle Declivity. 
But thefe particles of Blood were extremely fmall, in. 
comparifon of thofe Globules that are difcovered in larg- 
er Creatures, for I law a fpace of three hairs breadth, 
where no Particles of Blood circulated, in the Veins, and 
the Blood was expelfd with great fwiftnefs*> 
1 have yiew'd this Spider a great many times, and at ' 
taft on the 8th of March I could fee the Blood in one o£ 
the Arteries, but could not for my life difcover where, 
the Circulation began.> 
This Spider getting away from me, and I not being 
able ro meet with another as big, I defcrr'd my farther 
Gbfervations till the Spiders in the Gardens and Vine* 
yards, or other place's where they make their Webs^ were, 
come to their full growth. 
I have often taken up that fort of Spider, whofe Breech , 
is much larger and thicker than others^ to fee whither I 
€ould difcover anyCirculation of theBloodin themtoo,but: 
in vain 5 which put me upon confidering whither they 
irad any Globules, or round Particles ia their Blood ^ tO:> 
fatisfie my felf herein, I cut off one of tlie hinder Legs 
of fuch a Spider, and viewed the Blood that ran out, in 
which I found fo few Globules that they are not to be 
named 5 but wounding him in ihe Breaft, or. fore-part: 
of; 
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