C * 7 + 1 
nued to be difcernible in their Bodies : But, having 
afterwards removed thefe ‘Polypi into other Water, 
newly ‘taken out a Ditch, they in a little time re- 
fumed the fame brown Hue which they had before. 
It may commonly be obferved, that when the 
Polypi are in Water newly put to them, there fall 
upon their anterior Parts far greater Numbers of the 
above mentioned minute Bodies, than when they 
have been left for any time in the fame Water. 
It is very probable, that thefe minute Bodies are 
exceedingly fmall Animalcules, upon which the Po- 
lypi feed ; and that, confequently, the Opening 
which they have in their anterior Part, ferves them 
for the Purpofes of a Mouth. 
The Polypi that have become tranfparent, and 
that have been left fome time without the Addition 
of fuch Water as would make them recover their 
brown Colour, have alfo, at the fame time, left off 
multiplying. But I have obferved that others of them, 
to which I have afterwards given new Water from the 
Ditch, have foon after begun to multiply again. 
Thefe Polypi are capable of fwimming about ; and 
when they fwim, they arc no longer in Clutters, but 
always fingle ; and they do not then appear in the 
fame Form as when they are fixed, and open at their 
anterior Ends., It is by Swimming that they leave 
the Place to which they firft appeared fixed, and that 
they go and fix thcmfclves to any other Body that 
they find in their Way. 
One fhould begin to obferve a Polypus foon after 
it has fixed itfclf fingly, in order to lee regularly in 
what manner the Clutters form thcmfclves, and in 
what Way thefe fmall Creatures multiply. 
1 he 
4 
