144 
Mr. Brothers exhibited the Floscularia ornata, and a 
fine group of Lacinularia socialis. 
Mr. Mosley exhibited a specimen of Amoeba, and 
described the peculiarity of its motion. He had observed 
one of them rise in a straight line four -fifths of its entire 
length, its internal particles appearing to force outwards a 
transparent or invisible integument ; the point then fell over, 
forming an arch, after which it subsided into the common 
three or four-lobed form. In many specimens no vacuole 
was observed ; in others, an apparent air or water space was 
noticed. A portion of the one under examination appeared 
to be blown outwards like a bladder, in which appeared a 
5mall animalcule making desperate efforts to escape. The 
best illumination for observing the internal motion, he con- 
siders to be Wenham’s parabola and Lieberkiihn, with a 
4- 10th objective. 
