W. B. Rogers on Rotating Rings of Air and Liquids. 253 
from the feebleness of the rotation these appearances are only 
omenta 
mentary. en the bubble is two or three inches in diame- 
ase. en very small bubbles are broken, 
quick and the cloud too small for satisfactory 
observation. 
 Scribed are 
_ ture of bubb 
inches, forming a ag 2 
