1.The crystalline state. 2.The specific heat of solid and lattice vibrations. 3.Some properties of metallic lattices. 4.Some properties of simple alloys. 5.Lattice energy of ionic crystals. 6.Dielectric an optical properties of insulators. 7.Ionic conductivity and diffusion. 8.Ferroelectrics. 9.Free electron theory of solids. 10.The Band theory of solids. 11.The conductivity of metals. 12.The electron distribution in insulators and semiconductors. 13.Nonpolar semiconductors. 14.Rectifiers and transistors. 15.Electronic properties of alkali halides. 16.Luminescence. 17.Secondary electron emission. 18.Diamagnetism and paramagnetic. 19.Ferromagnetism, antiferromagnetic, and ferrimagnetism. 20.Magnetic relaxation and resonance phenomena.