1 86 
Views  on  Constitution  of  the  Atom.    { AmA^[;  ?9\f  m- 
of  inverse  squares.  Yet  when  these  diverging  rays  strike  some  one 
out  of  a  vast  number  of  molecules  there  is  ejected  an  electron  with 
a  speed  almost  equal  to  that  of  the  primary  cathode  rays.  The 
ejection  may  take  place,  moreover,  many  metres  away  from  the  tube. 
Fig.  i. 
No  explanation  of  this  anomaly  is  forthcoming.  The  energy  cannot 
come  from  the  atom,  for  when  the  intensity  of  the  rays  is  increased 
there  is  a  corresponding  increase  in  the  number  of  ejected  electrons. 
When  the  frequency  of  the  waves  of  the  Rontgen  rays  is  increased 
