( h9 ) 
On the loth of February my Spiders were reduced to half 
their number, and thofe that remain d were eating the 
Thickeft of their Companions Legs. 
Thefe Spiders diminiftit daily, fo that on the lait of 
the faid month I could fee but thirty of em alive, among * 
which a few were twenty times as big as fome that remained. 
On the 5th of March I could fee but 3 or 4 alive, and 
about the Web I obferv'd a black Matter, about which 
the Spiders had fwarm'd very much, and found that it 
was nothing elfe but a heap of Legs of thofe young Spi- 
ders, whofe Bodies had been devoured. 
I kept by me the Eggs of feveral Spiders inGlafs Tubes 
in my Clofet, and parriccVarly on the 24th of "jamiary I 
put the Eggs of two different Spiders in two diftind 
Glafles, and on the 6th of Fehruaij could perceive in one 
of them 3 young ones crawling out of the Web. 
I took one of thofe young Spiders, whofe Egg-{hell 
was ftill hanging at his Tail^ and fet him before my Mi- 
crofcope in the open Air, and tho the fore-part of his 
Body was as bright as Glafs, yet I could not perceive the 
leaft motion in the inner parts 5 from whence I con- 
eluded that the Heart was not fettled in their Bread, for 
if it had been there I muft needs have perceiv'd the Moti- 
on thereof 5 now therefore I believe it lay near the Eyes, - 
where it was not fo Tranfparent, for that the Eacpljhn 
of the Blood in a Spider proceeds from the Heart, is, I 
think, not to be doubted. 
I endeavoured moreover to difcover the Circulation of 
the Blood in the Legs of thefe fraall Creatures, which ob- 
fervation fucceeded with me feveral times. 
When I cafl: my Eyes upon the hinder part of their 
Bodies, I could perceive that the thtrals thereof confifted 
of a vaft number of Globules of feveral fizes, of which 
the Eggs are composed. 
On the 7ch of February I could not perceive that there 
were any more young Spiders come out of the Web, but 
