1893.] 



MICROSCOPICAL JOURNAL. 



283 



cess of reproduction. Possibly another explanation is, that 

 Amoeba, like many other microscopic forms, is gregarious in its 

 habits, and unites for the purpose of gathering U}) the food in 

 it track. In the patches here observed, many individuals were 

 more or less gorged with the other organisms lying or moving 

 around them. It seems plain from some incidents related fur- 

 ther on that at least two individuals can and do unite for a 

 common purpose. 



FIG. 1.— QUIESCENT STATE OF AMCEBA. THE LOWER ONE IS PUSHING OUT AND 

 DRAWING IN SHORT FINGER-LIKE PROCESSES. 



FIG. 2.— A LINE OF TEN AM(EB.\S IN CLOSE CONTACT, FOUR OF THE LO WER ONES 

 ADVANCING TO THE LEFT. 



FIG. 3.— A STENTOR WHOSE MIDDLE IS ENCLOSED AND PINCHED BY AN AM<EBA. 

 THE STENTOR DREW ITSELF OUT OF THK C.WITY AND ESCAPED UNINJURED. 



Of all things connect d with the Amoeba, those which excite 

 the liveliest interest are the combats frequently witnessed in its 

 endeavor to capture other animalcules for some of which it 

 seems to have a special liking. In illustration of this the fol- 

 lowing incidents are narrated. 



