510 



GENERAL PH'SSIOLOGY 



uninjured organism (Fig. 252, e). In short, as regards its move- 

 ments, every piece behaves exactly as when in connection with the 

 body of the normal Lacrymaria. Upon stimulation, contraction 

 of the myoids and acceleration of the ciliary stroke take place in 



Fig. 252. — Section of Lacrymaria olor. The black lines indicate the cuts. 



all pieces, the cilia causing the rotation upon the axis, exactly dS 

 happens upon stimulation in the uninjured protist. In the non- 

 nucleated pieces, this normal motion continues, as a rule, for nearly 

 a day. Then the difference between the non-nucleated and the 



