HYDRA. EPS 
and soon after expanded; but this he regarded as only the 
feeble remains of life in the one; in the other, which had 
the head and arms, he began to think that the wound he 
had inflicted might not be deadly; that being only muti- 
lated and deprived of a part that was not vital, it might 
recover, as he had seen lizards do when they had lost their 
tails. He continued, however, to observe the other part, to 
see how long it would retain symptoms of life, but not with 
the slightest expectation that it would recover its head and 
arms. Great was his surprise, then, when on the ninth 
day after the polype had been cut in two, regarding with a 
lens the tail part, he saw three little points precisely at the 
place where the arms would be if it was to become a com- 
plete :polype. He became quite excited, and very impatient 
for the moment when he would be able with certainty to 
know what they were. He had not to wait long, for next 
day they were soymuch longer, that he could not entertain 
a doubt that they were arms that were growing on this 
smaller section of the polype. The next day there were 
two more, and on the following day three additional, making 
in all eight arms, which were soon as long as those on the 
entire one, or on the part which had the arms before the body 
of the polype was divided. In a little while each part had 
