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tentively , I did, with admiration, obferve a thoufand of them in 
one drop of watefj which were of the fmalleft fort, that I had 
feenhitherfo. 
The i2//5of5^««tf,the wind being at vveft,the Sun Qiining with 
interloping clouds,! viewed the fame Rain water,and found the 
fore mentiond little Animals fo plentifully in the water which 
I tookupfroni thefurfjce,that one or two thoufand in one fin- 
gle drop did notmake up their number. 
The I ^th of the fame month, viewing the fame water again , 
.1 found, befides the Animals already noted, a fort of creatures, 
that were eight times as big as they, of almoft a round figure: 
And as thofevery fwdiW ammalcula did fwim gently among one 
another, moving like as Gnats do in the Air ; fo did thefe big- 
ger ones move far more fwiftly, tumbling round as 'twere, and 
then making a fudden downfall. 
The i4?A of Ju^e I did find thefe very little creatures in no 
fmaller number. The 1 6th^ I faw them as before; and this wa- 
ter, which had been^ in all, |of a pint, being now more than half 
dryed up, I flung it away. ObfervN, 
The (^thoiJunCil put of ihefatr.e Rain-water in a very clean 
Wine glafs in my Counter or Study, and viewing the fame, I 
perceived no living creatures in it. 
]Sfote^\\\dii my Study ftands toward the North eaft,in myj Anti- 
chamber, and is very clofe,3oYned together with Wainfcot, has 
ving no other opening than one hole of an inch aud a half broad, 
and 8 inches long, cowards the ftreet fumiftt with 4 windows, 
of which the two lowermoft open inwards, and by night are 
clofed with twowooden Shuts',fo that there comes inbut little 
Air from without, unlefs it be that I ufe a candle in making my 
Obfervations, in which cafe 1 lift up a little Cafcment,that the 
fteam of the candle may not offend me ; but yet drawing a Cur- 
rain at that time over almoft all the windows* 
The loth of 5^^;/^,obrerving the mentioned Rain-water,which 
now had flood 24 hours in my fludy, I noted fome few very 
fmall living creatures, in which, by reafon of their extream mi- 
nuteoefs, I could fee no figure, and atnong the reft I difcover'd 
one that was fome what greater, of aaoval figure, 
iVij/^jthat when I fay, I have view'd the water, I mean, that I 
have vicw*d only 3,4>or 5 drops of the water,which I alfo flung 
away^ 
The 
