344 



SCWJ^CII. 



[Vol. IX., No. 218 



fact, all insensitive persons are liable to overlook in each one of the cases l*eported was dependent 

 ear-disease until incapacitated to perform their on the distance from the shell, the facing at the 

 vs'ork. It was only after persistent inquiries moment of explosion, and the size of the external 



1 I r 1 f f-r .,.. 



Fig; 1. 



© 



were made that some of these persons would ad- auditory canal. In some instances, as, for exam- 



mit that they had suffered any injury of the ear. pie, in the cases of Abbott, Clark, Goodno, Ingram, 



The extent of the injury of the drum of the ear and Sinclair, the drum-heads were driven in with 



