(2159 ) 
I have formerly had one of thefe Spunges, in which I 
found a little hardnefs, and from that hardnefs I do fup- 
pofe the Spunge received its firft growth. 
Having opened that part of the Spunge, I took out of 
it a little Shell and fome very fmall Stones ^ the Shell vrdS 
of a particular figure, and fuch as is not to be founrl upon 
the Strands of our Sea. 
Thereupon I went to fome of thofe Shops that fell 
Spunges, and examining the feveral Spunges, I took divers 
litrle Shells, Horns and Siones out of em, and amongiic 
the reft one Shell that was bigger than any of thofe that 
I had feen before ^ from whence I concluded, th.-^t the 
ftonnSj by putting the Sea into an extraordinary motioa 
in or about thofe places where Spnnges grow upon the 
Piock§5 had raifed from the Ground thefe little S ells and ^ 
Stones and thrown them into the Spuoges whilO: they 
were growing ^ the rather becaufe thefe little Shells and 
Stones were not only furrounded in fuch a manner by the 
Spunges as to imprefs their own figures in them, but even 
the parts of the Sponges had iniinuated themfelves inta 
the little Shells, infbmuch that they could not be fepa- 
rated from thofe Shells without breaking fome of the 
parts of the Spunges. 
Fig. 4- A. C. D. E. reprefents a little Shell or Scollope, 
which by the tearing it out of the Spunge was a little 
damaged, as you may perceive between C and B ^ at A, 
there grew to it fmall parts of red Coral, and upon C 
and D there lay much (mailer Particles of the fame 5 there 
was (ome Coral too on that fide of the Shell that w^ 
turned from the fights 
Between B and C we alfo difcovered an AnimalcuTura 
that is defcribed like a Snake or an Ee! ^ and I have ob- 
ferved the fame, not only upon this Shell but alfo upon 
fmtai little Stones that I ha; vc taken out of Spunges, - 
