10.1 Waves in a Compressible Gas10.2 Waves in Warm Plasma10.3 Constitutive Relation for a Lossy Warm Plasma10.4 Dielectric Model of Warm Loss-Free Plasma10.5 Conductor Model of Warm Lossy Plasma10.6 Spatial Dispersion and Nonlocal Metal Optics10.7 Technical Definition of Plasma State10.7.1 Temperate Plasma10.7.2 Debye Length, Collective Behavior, and Overall Charge Neutrality10.7.3 Unneutralized PlasmaReferences