(88o) 
This was no fmall diverfion for me, to fee the Salts, 
which feetn'd to have their rife from a Point or exceed- 
ing fmall particle of Blood, ftream and branch themfelves 
as it were into Trees. 
After this, I took up another Spider, and put him in- 
to my Glafs Tube, in order to difcover the Circulation of 
the Blood 5 and faw it very plain both in the Veins and 
Arteries 5 and his Legs b^ing very Tranfparent, like thofe 
Spiders that are found in Trees or Shrubs, I faw feveral 
times (and that prefently one after another) a fudden and 
brisker motion of the Blood, which I fuppofe was occa- 
fion'd by every Syftole and Diaftole of the Heart, 
I took another Spider that I found in a Thiftle, which 
was eight times lefs than the great Garden Spider, and 
obferved the Circulation of his Blood, which I could ea- 
fily perceive both in the Veins and Arteries. 
In the middle, or about the latter end of the month of 
OMer^ I took feveral of ^ the largeft Spiders I could get, 
and (hut them up feverally in Glafs Tubes, that they 
might lay their Eggs, and to fee what I could difcover 
in the faid Eggs, the time being come that they could 
get no more food, the Flyes and ©ther winged Infers 
which they ufed to prey on, being all gone 5 but I was 
amazed to find in their Excrements whole Wings and 
Heads and Legs of fmall Flies, which were fo large that 
I could not conceive how they paft thro'their Bodies. 
On the 30th of O&okr^ I obferved that two of my 
Spiders had laid Eggs, and had cover'd them with fo vaft 
. a quantity of their Web, that I was aftoniftit how they 
could do it in a few hours. 
I took the Web, and the Eggs that were inclofed, and 
opened feveral of them, which I found to be of a yel- 
lowifli colour. 
Thefe Eggs were almoft round, and the Axis of one of 
them was about the 30th part of an Inch, and ' when 
they lay all together, they made a roundifti Body, whofe 
Axis 
