[ 6 5 i 1 
When I firft began to feek for the origin of the 
round bulbous bodies I have been fpeaking of, I 
immediately recolleded thofe other round bodies I 
had before taken notice of, and which I*at the firft 
fufpeded to be infeds preying upon thefe Polypi. 
I therefore again fought for them in the clufters 
already formed 5 I foon found feveral of them, and 
I perceived that they neither attacked the Polypi 
nor changed their fituation. I then concluded that 
thefe round bodies were really the very bulbous 
ones in queftion, and whofe origin I was now feeking 
for : I applied my felf therefore to obferve feveral 
of them, and thefe are the fads which I then dif* 
covered. 
Some days after the clufters had begun to form 
themfelves, I faw come out, not from the extremities 
of the branches, but from the bodies of the branches 
themfelves in different places, fm all round buds/ 
which grew very faft, and which arrived at their 
greateft fize in two or three days. Thefe bodies 
much refembled the galls which grow on the leaves 
of oaks ; they were placed upon the branches of 
the clufters, juft as thofe galls are ufually placed 
upon the fibres of the leaves : and thefe |bulbous 
fubftances do really contain the principles of the 
clufters. 
Two or three days after thefe bulbs have begun 
to form, they detach themfelves from the branches 
out of which they fprung, and go away fwimming 
till they can fettle upon feme body, which they^ 
meet withal! in the water, and to which they imme- 
diately fix themfelves by a fhort pedicle. The bulbs 
are then nearly round only a little flatted on the 
' under 
