PHYSICS 

 SCHEDULE OF CLASSIFICATION 



ADAPTED FEOM SCHEDULE OF THE INTERNATIONAL 

 CATALOGUE OF SCIENTIFIC LITERATURE. 



ELECTEICITY AND MAGNETISM. 



4900 General. (See also 6410.) 551-552 



Electricity 551-552 



Experiments ... 551-552 



Theories 552 



Electricity and Magnetism 552 



General Dynamical Theory and 

 Relations. Units. 



4940 Equations of the Electro- 

 dynamic Field. (See also 

 6410, 6420.) ... 553-554 



4960 Electrons. Moving Media... 554 

 4970 Tubes and Lines of Force ... 555 

 4980 Transfer of Energy, Momen- 

 tum, etc. ... ... 555 



5000 U nits, Electric and Magnetic 555-559 

 Dimensions ... ... 556 



Electric Units ... 557-558 



Electrostatic and Electro- 

 magnetic Units ... 558 



Ratio (v) 558 



Magnetic Units ... ... 559 



Electrostatics. 



5200 General 559-560 



5210 Electrification by Contact 

 or Friction. Various 

 Sources of Electrifica- 

 tion 560-565 



Contact Electricity 560-561 



Electric Separation 561-562 



Theories of Electricity 561-562 



Electrification by Friction 562-564 



Steam 563 



Various Sources of Electri- 

 fication ... ... ... 564 



5220 Electric Charge and Distribu- 

 tion; Quantity; Density; 

 Induction ; Condensers. 

 (For Lichtenberg and 

 similiar figures see 6800.) 565-576 

 Charge and Distribution 565-569 

 A ttraction and Repulsion 565 



Attraction 



Repulsion 



Distribution 



PAGE 

 565 

 565 



566-567 

 566-567 

 Electric Force ... 567-568 



Law of Force 568 



Potential ... 568-569 



Condensers. (.For Discharge 



see also 6820.) 569-574 



. Capacity 570 



Leyden Battery . . . 571-572 



, Leyden Jar ... 572-573 



Discharge 572 



. Residual Charge ... 573 



Density ... ... ... 574 



Electric Field 574 



Induction 574-576 



Bound and Free Elec- 

 tricity ... ... ... 575 



Theory of Induction ... 576 

 5240 Potential Difference. (See also 



5695, 6005, 6210.)... 576-577 



5250 Theory of the Dielectric. 



Stress ; Energy, etc. 577-581 

 Dielectric Properties of 



Various Bodies ... 577 



Dielectric Strength ... 577 



Dielectrics 577-579 



Polarisation of Dielec- 

 trics ... "... 578-579 



Energy 579-580 



Insulators 580-581 



. Various Insulators 580-581 



Stress. (See also 5253.) ... 581 



5252 Measurement of Dielectric 



Constants. Dielectric 

 Hysteresis. (See also 

 Chemistry 7280.) 581-585 



Dielectric Constants 581-584 



Measurement ... 582-583 



. . Dielectric Constants of 



Various Substances 583-584 

 Dielectric Hysteresis 584-585 



5253 Electrostriction. (See also 



5250.) ... 585 



