( ) ^ 
■ ' Having examined thc(e Weeds^ I found, that altho they 
were arrived to their full growth, they had but two Lioots 
which were longer than the Roots of the firft Weed, and 
Vv'iieo i viewed the fmalier Weeds, 1 could perceive they had 
a great many, but very ftiort Roots. 
Whilft I was obferving the laft Weed, I faw with wonder 
a great number of Aniraalcula fwitnming in Circles thro the 
Water, and (o thick together, that even to the naked Eye 
they feem'd like a Cloudy I never faw any of thefe little 
Creatures in other Waters, and the next day they were all 
gone. 
There was a great many forts of thefe Aniraalcula, and 
each had their different Motion, and all fo fmall as to efcape 
our naked Eyes. 
Among thefe, I obferved fome which were much bigger 
than the reft, and were coupled together, in which aftion 
they lay very ftill on the fides of the Glafs, but a bigger fort 
interrupted them 5 whiift they were quiet, I could eafily fee 
thofe parts which they ufe in motion, and alfo the motion 
of feveral parts of their Body, which fome would take for 
the Circulation of the Blood 5 but I rather efteem it the Chile 
in the Guts. Thefe Animalcula were fo big, that one might 
fee them ia clear Water and in a Glafs Tube, amongft fcve« 
ral of thefe forts I could perceive fome as big as little Sandf, 
and as compleatly formed gs our Garden Spiders. 
Rrr f r r r 
