INDEX" OF SUBJECTS. 641 



INDEX OF SUBJECTS. 



PART L STATICAL ELECTRICITY. 

 CHAPTER L INTRODUCTORY. 



PAGE 



Electrification I 



Conductors. Insulators I 



Distinction of Two Electricities 2 



Electrical Actions. Electrical Masses , 2 



Positive and Negative Electricity 3 



Electrical Force 3 



Distribution of Electricity 4 



Electricity of Contact 4 



Electrification by Influence. Induction 4 



Electrical Equilibrium 5 



Dielectrics 5 



Localisation of Electricity on the Surface 5 



Induction on a Closed Conductor 5 



Addition of Charges 6 



Hypothesis as to the Nature of Electricity 6 



Electrical Density. Electrical Thickness 7 



CHAPTER IL ON POTENTIAL. 



Reciprocal Action of Two Electrified Bodies 9 



Electrical Field 9 



Lines of Force i 9 



Definition of Potential 9 



Equipotential Surfaces. Electromotive Force - 10 



Expression of Force as a Function of Potential 1 1 



Equilibrium of Conductors 12 



Numerical Value of Potential 13 



Potential in the Case of the Law of the Square of the Distances .... 13 



On the Flow of Force 15 



Green's Theorem 16 



Equations of Laplace and Poisson 20 



Distribution of Electricity on the Surface of Conductors . . . ., . . . 21 



Green's Formula 22 



TT 



