Of Spiders . i-ip 
■as If it was dead, In order to fhew the above-mention’d 
aperture; and at D the hook is feen. 
Fig. 184. G H I K fhews the hook feparated from the 
fpider’s body, as it appear'd through the microfcope; be¬ 
tween I and K are feen the wrinkles or folds, which Mr. 
Leeuwenhoek fuppofes are made to produce a more than: 
ordinary motion: E F fhews the part that join’d it to the 
body, and between F and G are two round balls. The 
' ufe of which he could not difcover. 
The eggs of fome fpiders are a good objedt, being flat- 
tifh at one end, and round at the other, with a depref- 
fion at the center of the flattifh end, and a yellowifh cir¬ 
cle round it; their colour is a blueifh white like coun¬ 
terfeited ^ pearl; when they hatch, the little fpiders come 
.out perfectly form’d, and very nimble. They depofite 
their eggs to the amount of five or fix hundred, in a bag 
strongly compos’d of their own web, which the fpider 
either carries under her belly, and guards with the 
greateft care, or elfe hides it in fome fafe recefs. When 
juft hatched, the young fpiders make an entertaining ob¬ 
ject for the microfcope. 
The current of the blood may be feen in the legs and 
body of fpiders, as has been before hinted; many other 
wonders will be di fcover’d by the curious in the diffec- 
tion and examination of their feveral parts. 
The carter, fhepherd, field, or long-legged fpider, is 
different from moft other fpiders in two particulars; the 
firft, which is only difcoverable by the microfcope, is the 
^curious contrivance of its eyes ; it has only two, and 
thofe placed upon the top of a fmall pillar, rifing per¬ 
pendicularly out of the middle of its back, or rather the 
crown of its head. r The two eyes, B B, fig. 185, 
Were placed back to back, with the tranfparent parts 
I 4 or 
* Power’s Micro. Obf. p. 15. r Hook's Micro, p. 198. 
