72 PLANARIA FELINA. 



into a curve, and abandoned the plane of 

 position. Yet it was always subservient to 

 what properly constituted the parent whole ; 

 that being the consequence of its subordi- 

 nate size. 



In the subsequent months of December 

 and January, the three portions composing 

 the total animal, namely, the two heads and 

 the tail, were nearly of equal length, which 

 created no little embarrassment in its pro- 

 gression. When the inclinations of any 

 two were in unison, they overpowered the 

 resistance of the third, which could only 

 disturb the regularity of their course. 



Experiments of a similar description ha- 

 ving been repeated on the thirtieth of Octo- 

 ber 1811, several years after my attention 

 had been first directed to the subject, they 

 proved abortive for the most part, or the pla- 

 nariae perished. But on the twenty-fourth 

 of November, I observed a minute head 

 vegetating from the side of each of two that 

 survived. One inclined considerably down- 

 wards, in the direction of the tail ; the an^ 



