( 877) 
I faid before, that a few of thefe Inftriiments were 
larger than the reft, and confequently produced a larger 
Thready and (hewing the Limner fuch a one that ftood 
between two others (one of which brought forth a krin- 
kled or harl'd Thread J, I caus'd him to draw it, as you 
may fee in Fig. 6. AB and DE reprefenting the two 
fmall ones. 
It has happened fometimes, that when I fqueez d fuch 
an Inftrument^s Fig; 5. inftead of Threads, which ought 
to have appeared, there came out Matter that became a 
round drop, which I fuppofe was occafion d for want of 
a continuation of the fame Matter 5 whereas the other 
parts that ftood next produced Threads. 
When I ufed to prefs the hinder part of the Spiders 
Body, from whence its Vv^eb proceeds^ with my Tongues 
or Pincers pretty hard, it has frequently happened that a 
round particle, in length the third part of an inch, and 
as thick as a Horfe-hair, came out, very Tranfparent, 
and of a Tough and Vifcous nature, whereupon I thought 
withmy felf, whether this might not be the fubftance 
whereof the Threads were form'd, and alfo whither the 
Body of the Spider was not fo framed, as to be able to 
prefs or infinuate into its Working Inftruments that Mat- 
ter, which was the Foundation of the Threads that iffued 
from thence. 
I have often cut off a piece of that part of the Spider's 
Body from whence thefe Threads proceed, and have af- 
terwards drawn out long Threads out of it. 
Onetime I took a very fmall Frog, the length of 
whofe Body was about an inch and half, and put him 
into a Glafs Tube, and a great Spider by him, in order 
to fee how thefe two would behave themfelves towards 
each other 5 I obferved that the Spider paft by the Frog 
without touching him, but yet he had drawn out his 
Stings, as if he intended to have fallen on ^him imme- 
diately. ■ ^ 
A a a a a a 2 After 
