." 
x 
952 «WB. Rogers on Rotating Rings of Air and Liquids. 
ture of a bubble of common air, it becomes important to deter 
ne what kind and amount of effect is due to the simple bursting 
rotary motion is produced corresponding with that of the air rings 
already described. 
. Mode of experimenting with floating bubbles of air—In order — 
to observe the movement of the air occasioned by the bursting « 
he rup- “2 
extend — 
. 
of a wire inserted v 
and almost separate ri is developed at 
1€ air is not too space the alternate C0! 
wontal bands are perfectly distinct, 
