214 s ntifie Proceedings, Royal Dublin Society, 



I'LATE XXI. 



Successive portions of the same jet when influenced \>y B vibrating 



tuning-fork. 



PlO. 



1. Lower part of the clear column, showing the disturbance travelling 



down with increasing amplitude, until disintegration I 

 place. 



2. Middle of the jet. Collisions occurring between large and small 



drops. 



3. Lowest part of the jet. 



