OF CURIOSITY. 
ij>9 
'Would be difficult to find the limits between 
them. The polypus and the mofs joyn the ve- 
getable, and the animal kingdom together, for 
the plants called conferva and the animals cal- 
led coralline , are not eafy to diftinguifh, and 
the corals conned the animal, vegetable and 
foffil world. 
Hence the botanifts of this age have been 
bufied about fettling natural claffes, which is 
an affair of the greateft importance, and diffi- 
culty ; but fince the vegetables hitherto dis- 
covered are not fufficient for that purpofe, 
this part of knowledge is not compleat. It 
is therefore incumbent on botanifts to get ac- 
quainted with exotic plants, that they may 
arrive at the end defired. If all the ' colum- 
niferous plants except the mujk-mallow were 
known, the turnera never could be referred 
to this order, but that, as foon as it was exa- 
mined, conneded the turnera with the columni- 
ferous plants. 
Where the natural claffes are fettled we find 
the vegetables fo near akin to one another, 
that we can fcarcely diftinguifh them, as in 
the umbellated , the fdiquofe , the leguminofe , the 
compofite , &c. molt of thefe orders grow in 
Europe, 
