( Sji ) 
E F G reprefents the 2 Rows of Teeth which ferve for 
a Cafe to the Stings, thefe Teeth are cover d with Hairs, 
which I did not think neceflary to defign at prefent 3 CB 
is the Sting in its pofture of reft. 
Thefe two Rows of Teeth I fancy are given the Spi- 
der to hold the Prey that he has hunted and ftruck with 
his Sting, fo faft that it cannot be wrefted from him. 
When I put two or three of the biggeft fort ot Spi- 
ders together in the Glafs, I obferved that when they 
met, they never parted without an Engagement, in which 
one has been fo wounded fometimes, that his Body was 
wet with the Blood fpilt in the Battel,and that foon after 
he dyed. 
I always obferved that the leffer fled from the greater, 
and when it happened that two of an equal fize met to- 
gether, neither retired, but held one another fo fall: by 
their Stings, that one would remain dead without once 
ftirring, and fo wet with the Blood it had loft, as if it 
had lain fome time in the Water. 
I had one Spider that was wounded by his Antagonift 
in thethickeft part of his Leg,from v/hence iffued one drop 
of Blood as big as a large Sand 5 not being able to ufe this 
wounded Leg in running away from his Enemy, he raifed 
it up an end, and prefently after the whole Limb fell off 
from his Body 5 and I have obferv'd that when they 
are wounded in the Breaft, or upper part of their Bodies, 
they always die. 
I ufed to be oFbpinion, that when the Spider would 
fatten his Thread to any thing, or joyn one * Thread to 
another, that the laft fpun Thread was indued with a 
fort of a Slimy or Glewy Matter, whereby it ftuck to 
whatever the Spider faftend it, as it happens in Silk- 
worms. But I have found, on the contrary, that the 
Spider can't faften his Thread, unlefs he prefles with his 
Breech upon the place where his Thread is to be fatten- 
ed, which preflure caufes an infinite number of unfpeak- 
