Coherence produced by thermal luminous sources -- Interferences of two waves by wavefront division -- Interferences of two waves by amplitude division -- Two-beam interferometers -- Standing waves -- Multiple beam interferences -- Polarization interferometers -- Interference and partial coherence -- Intensity interferometer -- Interferences with lasers -- Interferential study of wavefronts -- Interferometric measurement of the transfer function of an optical instrument--noncoherent illumination -- Thin films -- Interference spectroscopy -- Application of interferences for the measurement of length -- Diverse applications of interference