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After having given a defcription of feveral very 
curious marine plants, he proceeds to the beds of 
polypes. He gives this name to all thofe organifed 
bodies, known under the name of coralline bodies ; 
and which were, for a long time, ranged under the 
clafs of plants. He then mentions different bodies, 
which he calls plant-animals, and animal-plants, ac- 
cording to the characters, which he found belonging 
to them, and which bring them more or Ids near to 
one or other of thefe general dalles. 
Jt would be too extenfive a delign to follow our 
author through all the curious details, which he gives 
upon this fubjeCb Befides that an extradt of that 
part of his work was read at a meeting of this Royal 
Society, and is printed in the 4.7th volume, p. 95;. 
of the F bilofopbical T ranfafiicm. 
LX XXIX, 
