1 32 Of Animalcula in Fluids . 
ijiftead of being flat, as in the former cafe, they {brink 
into oval forms. Tindlure of fait of tartar throws them 
into convulftve motions, after which they foon grow lan¬ 
guid and die, without changing their fhape. Ink kills 
them, and fo does frefh bicod, urine, fpittle, and diflolved 
fugar K 
There is alfo another fort of animalcule, frequently 
found in this infufion, of a fpherical figure, only pointed 
like a pear, as at fig. 210. in which are a vaft number 
of dark fpots, in a confufed agitation; they chiefly turn 
as it were upon a center, firft one way, and then the 
contrary, fometimes they take a large circuit, but always 
with their pointed ehd foremoft. 
Another fort repiefented at fig. 211. is alfo found in 
great numbers they move brifkly, are very atftNe, con¬ 
tracting, and dilating as they fwim along; they have fe~ 
veral feet in their fore parts very vifible j when the drop 
of water is almoft evaporated, they fhrink up into a 
globular form, then their feet {landing out, may be feen 
to move nimbly; a, {hews them at their length, and 1> 
when contradled. 
Fig. 212. reprefents another animalculum, not un¬ 
common amongfl the reft; its motion very nimble, al¬ 
ways keeping its fharp extremity foremoft; fome are 
clear and ribb’d from the point to the thick extremity, 
others tranfparent only at the fore part, as at a and b. 
The water which drains from dunghills, and is of a 
brown colour, is generally fo prodigioufly ftored with; 
various forts of animalcula, that it muft be diluted with 
water befjpre they can be fufficiently feparattd, to diftin- 
guifli their different kinds; one particular fort is found 
amongft thefe, which is very rarely to be met with elfe- 
wFere, and are {hewn at fig. 213. their middle part dark. 
1 Ibid. No.-203. 
