Of Antmalcula in Fluids . 
Seven days after thefe preparations, fome animalcules 
were found in each of them, two forts in the firft, and 
but one only fort in both the other : but in about a 
month’s time all the three infufions contained ten dif¬ 
ferent forts both in flrape and ftze. 
Thofe of fig. 258. and 259- are the frnalleft; but in 
number they exceed all the other; when coupled they re - 
femble a figure of 8, as at a, fig. 259. Thefe alfo are 
called bag-pipes ; they couple by the beak, which is a 
little crooked and iharp, and notwithftanding this coup¬ 
ling they fwim very, fail, diving to the bottom of the drop 
of liquor which is placed upon the objeft carrying glafs, 
and rifing up again to the top thereof alternately; they 
Separate from, and approach each other, without inter- 
miffion. Thefe bagpipe-like animalcules are not entirely 
alike; but there is in thefe, as in all other animals, dif¬ 
ferent forts of them. 
Some of them fwim alone with a furprifing rapidity, 
while others advance with a moderate fwiftnefs, fome go 
very flow, and others reft quiet for a long time together; 
but the greater part of them are in a perpetual agitation; 
fome of them are long, fome foort, others as white as 
filver, fome of a golden colour, and others brown. 
It is a fingular curiofity to obferve what pafles upon 
the furface and all around the circumference of a mafs of 
matter which hath formed itfelf into a very little bit of 
thin fkin, fo fmall, that the beft eyes are not able to fee 
it without a microfcope: they are found by chance on 
the furface of the infufion, and are generally fattened to 
the end of the ftalks. If a bit thereof be taken out with 
the point of a pin, and placed upon the objeft-carrying 
glafs before the microfcope, there will be feen fwarms of 
all thefe animalcules we have been fpeaking of. There 
are fuch great numbers of them moving with lo much 
cel e.rity. 
