FEIARB. 



7 



f-ul May. i '-Jit ky Oxidant i /otpey_ V'te L>»y 



ROGER BACON. 



The great English philosopher and pioneer in science, the seven hundredth anni- 

 versary of whose birth was celebrated at Oxford on June 10. An article describing 

 Roger Bacon's life and work by the late Dr. Edward S. Holden will be found in The 

 Popular Science Monthly for January, 1902. 



