CONTENTS 1. Introduction 455 2. Formation of Statistical System in the Process of Fast-hadron Collision 460 3. Fundamental Formulas of the Statistical Theory of Multiple Generation 464 4. Characteristics of the Multiple Generation Process (Comparison with Experiment) 465 5. Statistical Large-angle Scattering 474 6. Fundamental Problems of Statistical Theory. Dynamics and "True Statistics" 479 7. Conclusion 480 Supplement. Statistical Model with Lorentz-invariant Phase Volume 481 Cited literature 481