186 HISTORY OF BRITISH ZOOPHYTES. 
by the Ist of April the head part had got a new body, seemed 
strong and vigorous, and in no respect differed from other 
polypes of its kind. About the same time the tail part be- 
gan to show little tentacula, and a young polype began to 
spring from the middle of its body. Slimy matter, however, 
enveloping the part where the new head was beginning to 
be formed, he beheaded it a second time. On the 7th of 
April, new tentacula were observed round the part from 
which a head had twice been cut, and there were three 
young ones in a thriving state on different parts of the body. 
On the 8th of April the tentacula were so much grown, that 
they could lay hold of a worm, which the polype greedily 
devoured; and on the 9th of April, as it seemed now com- 
plete, he ceased to observe it and its young family. He 
afterwards divided a polype into four parts, and these in a 
few days were transformed into four polypes. He likewise 
cut in two some of the young ones before they were sepa- 
rated from the old, and the part that remained attached 
soon recovered what it had lost, and the amputated part 
grew into a perfect polype. 
His next experiment was to cut a polype lengthways into 
two equal parts, both as to the portion of the body, and the 
number of tentacula, which each part retained. Being 
