APT! RA. 
81 
They are in general nofturnal infers ; flying the 
light ; and fearching for their prey in the night 
time. Many of them devour the acari, wood-lice,, 
fpiders, Sec, Some of them live in the fea, attached 
to the bodies of the large aquatic animals ; others in 
the trunks of decayed trees. 
It is called Shepherd Spider and Harvefl-maru 
GENUS 8—ARANEA SPIDER. 
The eyes of fpiders are immoveable, and their Rruc- 
ture is different from that of the eyes of moR other 
imects, conhRing each of only one lenfe, which de¬ 
prives tnem of the faculty of multiplying objeCts 
as that of their immobility does of feeing fuchobjefls. 
as are placed otherwiie than exa£tly before each eye* 
See Eyes of Infects . 
Spiders prey upon all weaker. infeCts ; even thofe 
of their own fpecies ; and are themfelves deftroyed by 
fpheges and ichneumons. v 
They change their Rein. 
The thread fo fine confifis of 6000 threads ; which 
iffue from fix paffages. Gloves and Rockings have 
been manufactured from the ball of filk which the 
garden-fpider carries about her ; (containing her eggs ) 
which is their RrongeR thread; being five times finer 
than what the filk-worm, fpins. They were of a beau- 
‘ tiful 
