122 ANIMALS KILLED IV... 
the author propofed to treat the matter ex pro- 
Jefe, intended to fupprefs in this work all that 
concerns the wheel animal, becaufe it would have 
been ufelefs to treat of a fubject already difcufled 
by that learned obferver. I fhould certainly have 
done fo had I not obferved that Baker’s obferva- 
tions were materially different from mine, becaufe 
his wheel animals were of another fpecies. I 
therefore determined to publifh my treatife, which 
was improved by it; its imperfections leflened ; 
and new important matter added. This will ap- 
pear from many parts of my obfervations and 
experiments which I proceed to relate, beginning 
with a fact which may be patent to every one. I 
examined the fand from a fewer about three hours 
after it had been put into water. It was not dif- 
ficult to difcover the obje&s of my fearch. The 
firft drop, a mixture of fand and turbid matter, 
when prefented to the microfcope, exhibited three — 
living beings, which I immediately recognized as 
three of Leeuwenhoeck’s wheel animals. On 
the anterior part of the body was a horn; the 
body fwelled towards the middle ; and the pofte- 
rior part was terminated by three points ; but the 
anterior had neither trunks nor wheels, and the 
animals were nearly as in fig. 2. A. The body 
is tran{verfely annulated, and longitudinally radia- 
ted with fome parallel prominent rays, fig. 3. 
‘The indiftintnefs of the rings and lines renders 
them 
