PLANARIA FELINA. 65 



ed. But soon afterwards, a kind of projec- 

 tion occupied its place ; and it was not with- 

 out amazement, that I beheld this projec- 

 tion vegetate into a new head, resembling 

 the one which had been lost. About a month 

 having elapsed, it was well shaped and en- 

 tire ; marginal specks were perceptible by 

 the aid of the microscope; and, like its pre- 

 cursor, it shewed a tendency to motions 

 different from those of the rest of the body. 

 In about three weeks more, this secondary 

 trunk was so large, as to constitute rather 

 above a third of what an animal of corre- 

 sponding proportions, in the natural state, 

 should have been. Then, instead of follow- 

 ing its own will by crawling along the bottom 

 of the including vessel, it was frequently 

 seen bending in a curve over the plane of 

 position, while carried along with the other 

 parts, whose propensities it was incapable 

 of resisting. 



The monster now described, having thus 

 been provided with three different heads, 

 fed copiously, and lived several months in 



