( ^^55 ) 
bubbles, would frequently be difcharged. Of thefe I 
could number about four or five, and they feencied to be 
bufie with their Mouths as if in Feeding. 
Thefe four Kinds of living Creatures I found after- 
wards alfo in many other Drops of the fame corrupted 
water, (i. e?) in its Film or Skum, which was on the 
Surface, for under that, in the lower pares of the Wa- 
ter I could never find any Animals at all, unlefs when 
the Water was diflurbed, and the Surface (bakendown 
into, and mingled with the lower parrs. 
Jpril lyth^ 1696, 
3. With a much better Microfcope I examined fbme 
Raifi Water that had ftood uncovered a pretty while, 
but had not coorraded any fuch thick and difcoloured 
Skam, as that before-mentioned had. In this, where it 
was clear, I could not find any Animals at all 5 but a 
little thin white Skum, that like Greafe began to appear, 
in the Surface I found to be a Congeres of exceeding; 
fmall Animalcula- of different fliapes and {\zts^ much 
like thofe produced by fteeping Barley in Water. 
4. At the fame time I look't on a fmall Drop of 
the Green Surface of feme Paddle-water, which flood 
in my Yard, this I found to be altogether compofed of 
Animals of feveral Shapes and Magnitudes ; But 
the moft remarkable were thofe which I found gave the 
Water that Green Colour, and were Oval Creatures, 
whole middle part was of a Grafs Green, but each end 
Clear and Tranfparent. They would contraft and di- 
late themfelves, tumble over and over many times toge- 
ther, and then fhoot away like Fifhes : Their Head was 
at their broadeft end, for they ftill moved that way„ 
'They were very Numerous, but yet fo large, that ! 
could diftinguifti them very plainly, with a Glafs that 
did not magnify very much. Among thefe were inter- 
