TWENTY-FIVE years have passed since the writing of this volume in its first edition.Such a long interval has inevitably made necessary a fairly thorough revision and expansion of the book for its second edition.
The original choice of material was such that, with some very slight exceptions, it has not become obsolete.In this part, only some relatively minor additions and improvements have been made.

Preface to the second edition
Preface to the first English edition
Notation
Ⅰ.ELECTROSTATICS OF CONDUCTORS
1.The electrostatic field of conductors
2.The energy of the electrostatic field of conductors
3.Methods of solving problems in electrostatics
4.A conducting ellipsoid
5.The forces on a conductor
Ⅱ.ELECTROSTATICS OF DIELECTRICS
6.The electric field in dielectrics
7.The permittivity
8.A dielectric ellipsoid
9.The permittivity of a mixture
10.Thermodynamic relations for dielectrics in an electric field
11.The total free energy of a dielectric
12.Electrostriction of isotropic dielectrics
13.Dielectric properties of crystals
14.The sign of the dielectric susceptibility
15.Electric forces in a fluid dielectric
16.Electric forces in solids
17.Piezoelectrics
18.Thermodynamic inequalities
19.Ferroelectrics
20.Improper ferroelectrics
Ⅲ.STEADY CURRENT
21.The current density and the conductivity
22.The Hall effect
23.The contact potential
24.The galvanic cell
25.Electrocapillarity
26.Thermoelectric phenomena
27.Thennogalvanomagnetic phenomena
28.Diffusion phenomena
Ⅳ.STATIC MAGNETIC FIELD
29.Static magnetic field
30.The magnetic field of a steady current
31.Thermodynamic relations in a magnetic field
32.The total free energy of a magnetic substance
33.The energy of a system of currents
34.The self-inductance of linear conductors
35.Forces in a magnetic field
36.Gyromagnetic phenomena
Ⅴ.FERROMAGNETISM AND ANTIFERROMAGNETISM
Ⅵ.SUPERCONDUCTIVITY
Ⅶ.QUASI-STATIC ELECTROMAGNETIC FIELD
Ⅷ.MAGNETOHYDRODYNAMICS
Ⅸ.THE ELECTROMAGNETIC WAVE EQUATIONS
Ⅹ.THE PROPAGATION OF ELECTROMAGNETIC WAVES
Ⅺ.ELECTROMAGNETIC WAVES IN ANISOTROPIC MEDIA
Ⅻ.SPATIAL DISPERSION
ⅩⅢ.NON-LINEAR OPTICS
ⅩⅣ.THE PASSAGE OF FAST PARTICLES THROUGH MATTER
ⅩⅤ.SCATTERING OF ELECTROMAGNETIC WAVES
ⅩⅥ.DIFFRACTION OF X-RAYS IN CRYSTALS
Appendix
Index