c m ) 
III, Several Obfe r<v at ions and Experiments on the 
Animalcula, in fepper-Water, Sec. By Sir 
Edm, King, M. D. and S, K. S. 
SIR, 
X TPon reading fame Abftra&s of Mr. Leeuwenhoefts 
VJl Letters in the late Philofophical Tranfa&ions, I 
called to mind fame Microfcopical Experiments that I 
made too, concerning Animalcula, which I do not re- 
member, have been publickly taken notice of ; therefore 
in Obedience to your Commands, I have faithfully tran- 
fcrib'd them, fuch as they are, being certainly true, as 
to matter of fad. 
1. Firft, having fteep't Oates in Rain-water, fome 
days (perhaps 9. or 10.) and looking upon it with my 
bare Eye, I faw a Subflance, that feem'd to me like that 
ufually calFd a Mother (on other Liquors) and laying 
as much of it as a fmall Pin s head upon the Objedfc 
Plate of my beft Microfcope, I could very eafily and 
plainly difcern 7 or 3 forts of Animalcda y of different 
fizes and fhapes (or more J fwimming in this Subflance, 
which w T as Liquid enough, for them to perform very 
nimble and brisk Motions in, which was very pleafant 
to obferve : Their lhapes and fizes were after this man- Vide 
ner, as near as I could guefs. Fig. i* 
They were all very nimble in their Motions, by com- 
putation, feveral Thoufand times magnified. 
2. The thin Scum upon Pepper-water, that did re- 
ferable Flakes of Salt, upon fome forts of Human Urine, 
apply'd in the fame manner to the Object Plate of the 
Microfcope, was only Clutters of Animalcula, that had 
Liquid Matter enough to Swim in, and I was in ad- 
miration at their Numbers, Motions, Variety and Mi- 
nutenefs. 
V v . 3. in 
