348 PROCEEDINGS OP THE ACADEMY OP [1886. 



The most convincing proof to my mind that this was a pro- 

 ceeding which was for a purpose, was given when, two nights 

 after, this slide, which was laid carefully aside for future exami- 

 nation, was found to be full of young amoebae. They literally 

 swarmed ; I counted in the field at one time twenty-four of uni- 

 form size, while I have no hesitation in saying that there were 

 between one and two hundred in the slide, which had before held 

 but two. The worn-out disc was recognized, and also what 

 seemed to be the remains of the larger amoeba. 



