THE MOVEMENTS AND REACTIONS OF AMCEBA. 



2OI 



ball 3, now began to show signs of life, sent out pseudopodia, and, 

 indeed, became very active. We shall henceforth, therefore, speak of it 

 as Amoeba b. It began to creep out through the still open canal, send- 

 ing forth its pseudopodia to the outside (Fig. 76, 7) Thereupon 

 Amoeba c sent forth its pseudopodia in the same direction, and after 

 creeping in that direction several times its own length, again completely 



FIG. 76.* 



inclosed b (7-8). The latter again partly escaped (9), and was again 

 engulfed completely (10). Amoeba c now started again in the opposite 

 direction (i i), whereupon Amoeba , by a few rapid movements, escaped 

 entirely from the posterior end of c, and was free, being completely 

 separated from c (11-12). Thereupon c reversed its course (12), crept 

 up to 6, engulfed it completely again (13), and started away. Amoeba b 



*FiG. 76. Pursuit, capture, and ingestion of one Amoeba bv another; escape 

 of captured Amoeba and its recapture ; final escape. See text for detailed account. 



