VOL. LXIII.] ' PHILOSOPHICAL TRANSACTIONS. 465 



SO easily observed. With great difficulty are these anemonies loosened from the 

 stones they adhere to; part of the basis is often left behind, and they are not 

 easily preserved at home. Seeing however some of the individuals that voided 

 muscle shells whole, and still joined together, but empty, he found out the way 

 to feed them. Crab shells, about the size of a hen's egg, are likewise discharged 

 whole; and on offering them some live ones, he found that they swallowed them 

 down, and voided the remains sucked dry in about 20 hours. He cut open some 

 of this 2d species, which he could not loosen from the stones, and among them 

 he found one that had swallowed an anemone of the 3d species; but this had 

 received no harm. For, having put it into some sea- water, it opened and spread 

 as usual. He offered them several of the same species, which they swallowed 

 down; but threw up again alive within 8, 10, or 12 hours, or even later. Is 

 then a live anemone an undigestible body for another ? 



On the 21st of June, 1772, having caught the instant that an individual of the 

 3d species was stretching out, as expressed in fig. 13, he snipped off at once with 

 sharp scissars the whole upper part where the limbs and mouth are placed. It 

 was with great satisfaction that, 8 days after, he perceived new limbs growing 

 out, as in fig. 13. The 3d of July, the animal began to eat some bits of mus- 

 cles ; and towards the middle of the month, the upper part was so completely 

 formed, that it might easily have been mistaken for one of its undipped neigh- 

 bours, had there been many in the glass. It is neither the row of the centrical 

 or inner limbs, nor the most outward, which first bud out, but the intermediate 

 ones. The part which had been clipped off gave signs of sensibility to the 17th 

 of July, contracting and dilating itself, in the same manner as a whole anemone; 

 but it was much smaller than before the operation. This experiment has been 

 repeated by clipping, on the 11th of July, the whole upper part and one-third 

 of the body of another anemone. New limbs began to shoot out the 21st. 

 There were 2 rows of them on the 25th ; and on the 3d of August, 4 very dis- 

 tinct and well shaped, which caught and kept fast the food that was offered the 

 animal. The mouth itself was sufficiently well formed to take in several times 

 bits of muscles. On the 11th, he perceived in the limbs the faint ialternate 

 marks of ivory white and black, and soon after, there scarcely appeared any sign 

 of the operation having been performed. 



Being induced to try further experiments, on the 7th of August he clipped an 

 anemone across the body. Like the others, it moved or wriggled a little at first: 

 but he did not perceive any new limbs growing till towards the end of the 

 month. During that time, it continued in such a state as gave but little hopes 

 of its doing well again. Two rows of limbs appeared at last, and the insect re- 

 covered its strength. There was on the Qth of September a 3d row of limbs, 

 and the mouth appeared to be shaped out and formed; yet the anemone neither 



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