THE BECQUEREL RAYS FROM RADIUM. 



103 



deviable? Is it not possible that some of them are totally 

 unaffected by the magnet, and do not bend at all? To find 

 out, why not place the narrow photographic plate vertically, 

 instead of horizontally, between the poles of the magnet. 

 The idea was carried out, and the result is plain beyond all 

 question. The Becquerel rays consist of at least two kinds 

 of radiation. One kind, A (Fig. 33), is bent by the magnet; 



Fig. 33. 



the other, B, is apparently unaffected by it, and passes un- 

 dcviatingly on. The print (Fig. 34) taken under the mag- 



Fig. 34. 



net, shows still more clearly the existence of two distinct 

 kinds of radiation. With these two kinds of radiation 



