(. 4-3 ) 



In this figure, that part which is inai'ked witii the leiter W, was 

 covered with as many organs, and thofe placed as clofe together, 

 as are reprel'ented hetween the letters R and S, but as theie latter, 

 ftanding direcHy in front, could not by any means be diltiiictly 

 fliewn in the drawing, I ordered that fpace to be left vacant : the 

 part which is out of fight, was not covered with thefe organs but 

 with hairs. 



While I held this objecl up to tiie Limner's view, I turned round 

 the different parts of it, that he might declare how many of tiic 

 organs for fpinning tlie threads, in his judgment, it contained, upon 

 the view of which, he was confident that there were above one 

 hundred, 



I have before mentioned, that fome of thefe organs appeared to 

 me to be larger than others, and that I fuppoled their ufe was for 

 fpinning the larger threads. One of tliefe, as it flood between 

 two fmallcr ones, I placed in view of the Limner, dire6fing him to 

 make a drawing of it. This is fecn at fg. 32, C F, and in the fame 

 figure, at the letters ABandDE, are reprefented the two leller 

 organs, from one of which, a thread is feen to ifliie. 



After this, I took a fmall Frog, whofe body was about an inch and 

 an half in length, which I put into a glafs tube together with a large 

 Spider, in order to fee the a6lions of thefe two animals when brought 

 togetiier ; and I obferved the Spider pafs over the Frog without 

 hurting it, though with its fangs difplayed as if to attack the Frog. 

 Upon this, I caufed the Frog to fall againft the Spider, wlio, there- 

 upon, ftruck his fangs into the Frog's back, making two wounds, 

 one of vv'hich exhibited a red mark, and the other a purple fpot. I 

 then brought the Frog to the Spider a fecond time, who, thereupon, 

 ftruck his fai:gs into one of the Frog's fore feet, whereby fome 

 few of the blood velTels were wounded. And having provoked the 

 Spider a third time, he ffruck both fangs into the Frog's nofe» 



F 2 



