NATURAL HISTORY. 



91 



man,* who looked at spiders through a micro- 

 scope very often, thought it would take four 

 millions of the threads which came through 

 those holes to make one thread as thick as a 

 hair of his beard. Here is a picture of a spider 

 hanging by a thread coming out of its spinner, 

 or, as it is sometimes called, its spinneret." 



" Then, Uncle Philip, the spider does not 

 spin its thread all at once ?" 



* Leuwenhoek. 



