206 
RONTGEN RAYS. 
case) that enormous advance which has been derived from the use of 
the Rontgen rays, which had been really of very little use until they 
obtained that result from them. Therefore, I think that in rendering 
thanks for the lecture which we have heard to-night, we may render 
thanks for a very great advance in science, the mutual co-operation in 
which, of Mr. Moore and Mr. Webster, we have had fully put before us. 
The Chairman : It only remains for me upon your behalf, ladies 
and gentlemen, to thank Mr. Webster for his most interesting and 
brilliant lecture, to which we have listened with such great delight. 
(Loud and prolonged applause.) 
