Animalcules in Waters. 
Endways, it is fwallovved in that Manner ; otherwise it goes 
down double, and makes feveral Foldings in the Stomach, 
which diftends wonderfully for its Reception. The Worm 
foon dies there, and after it has been fqueezed or fucked, is 
voided by the Mouth. They eat more or lets, feldoiner or 
oftener, as the Weather is hotter or colder, and grow in Pro¬ 
portion to what they eat: they can live whole Months with¬ 
out Food, but wake proporiionabiy to their failing. 
He fays, the Account (in the Philofophical P’ranfadions 
before quoted, p. 95.) of the Manner how thefe Infedls mul¬ 
tiply, is true and exadt ; and the more one fearches into it, 
the more evidently it will appear to be done by a true Vege¬ 
tation. The Polype brings forth its Young from the exterior 
Parts of the Body, and that not always a hngle young one at 
once : it is common to fee five or fix, nay fometimes nine or 
ten at the fame Time ; and when one drops off, another 
comes in its Place. 
For two Years, thoufands of them have been under his Eye, 
but he could never obferve any thing like Copulation amongft; 
them. And left it fhould happen in fome fecret Manner be¬ 
tween the Old and Young, he has feveral Times cut off a 
young one from its Parent, and kept it in a Glafs alone ; 
notwithftanding which, it bred very plentifully. And that 
3io Copulation might poffibly be performed between the 
young ones themfelves, he has cut them off, one by one, as 
they fprouted out, and has kept each of them alone, and that 
for feven fucceffive Generations, but without finding any 
Difference as to their Increafe. He has likewife feen a Polype 
bring forth young ones, and thole again producing others, 
before the firft has been feparated from its Parent. They 
multiply more or lefs, in proportion to their Feeding, and 
the Warmnefs of the Weather. 
But the moftamazing Part of Mr. T remble y’s Account is, 
^yhat he tells us concerning his Operations on thefe Creatures. 
If one of them be cut in two, tranfverfely, the Fore-part, 
which contains the Head, Mouth, and Arms, lengthens it- 
felf, creeps, and eats, on the very fame Day. The Tail-part 
forms a Head and Mouth at the wounded End, and ihoots 
forth Arms, more or lefs fpeedily as the Heat is favourable. 
In Summer they will be (hoc out in twenty-four Flours, and 
the new Head perfected in a few Days. 
Cut a Polype where or in what Parts you pleafe, tranf¬ 
verfely, each Part becomes a compleat Polype. But being too 
fmali an Animal to admit of being divided into many Parts at 
Gnce ? 
7 
