130 ' Of viewing the Current 
Arteries and Veins ; and that Fluid* what¬ 
ever Colour it may be of, is properly to be 
accounted Blood. In Grafshoppers the Glo¬ 
bules (which may be feen palling through 
the Veffels in their Wings) are green ; and 
yet I am apt to think* Nobody that views 
them will hefitate to call them, with the 
Serum wherein they fwim. Blood. 
In the tranfparent Legs and Feet of feve- 
ral fmall Spiders, the Current of the Blood, 
may plainly be diflinguifhed both in the 
Veins and Arteries^ alfo in the Legs of very 
fmall Punices or Bugs it is remarkably vifible, 
together with an extraordinary Vibration 
of the Velfelsj which I never have obferv- 
ed in any other Creature. In thefe too, if 
clear, as they may fometimes be found, the 
wonderful Motions of all the internal Parts 
will afford an agreeable Entertainment to 
the curious, and may be examined as long 
and as often as they pleafe. For I have kept 
a Bug alive, in a Slider between two Pieces 
of Ifmglafs, at lead fix Weeks together, not- 
withflanding it was confined fo clofe as to 
be uncapable of flirting: and altho’ during 
that Time it often feemed dead and motion- 
ipfs, when I placed it before the Microfcope, 
a little Warmth would fet the Bowels at 
Work again, and renew the Current of the 
Blood as brifkly as ever* 
After 
2. 
1 
