A diffractive Pomeron pole is derived from a multiperipheral bootstrap where the Pomeron is required to be exchanged only once. The predictions for inclusive experiments are presented and are shown to provide tests for the nature of the Pomeranchuk singularity. © 1971.

Hadronic multiparticle reactions at very high energies are reviewed with emphasis on current theoretical pictures and models. © 1972 The American Physical Society.