224 



Mr. A. M. Worthington. 



The raised rim of the previous series is now developed into a hollow 

 shell of considerable height, which tends to close over the drop. 



This shell is a characteristic feature of all splashes made by large 

 drops falling from a considerable height and is extremely beautiful. 

 In the splash at present under consideration it does not always succeed 

 in closing, but opens out as it subsides and is followed by the emer- 

 gence of the drop which is now accompanied by so considerable a 

 quantity of adherent liquid that the vortex ring which is formed is not 

 generally well defined. At other times the shell closed completely, but 

 soon opened again and the configurations (7) to (11) followed. 



At other times, again, the shell having once closed over the im- 

 prisoned air never opened again ; the liquid composing it flowed down 



