HYDRA. 175 



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 so much 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 

 9 



