7^ ' International Catalogue of Scientific Literature 



SCHEDULE 



CLASSIFICATION 



(C) PHYSICS 



PRIMARY DIVISIONS 



GENERAL 



GENERAL MOLECULAR PHYSICS. . 



HEAT 



LIGHT AND INVISIBLE RADIATION 

 ELECTRICITY AND MAGNETISM . . 

 VIBRATION AND SOUND .. 



0000 

 0100 

 0900 

 2990 

 4900 

 8990 



(c-12818) 



