Solitons and Chaos is a response to the growing interestin systems exhibiting these two complementary manifestationsof nonlinearity. The papers cover a wide range of topics butshare common mathematical notions and investigationtechniques. An introductory note on eight concepts ofintegrability has been added as a guide for the uninitiatedreader. Both specialists and graduate students will findthis update on the state ofthe art useful.Key points: chaos vs. integrability; solitons: theory andapplications; dissipative systems; Hamiltonian systems; mapsand cascades; direct vs. inverse methods; higher dimensions;Lie groups, Painleve analysis, numerical algorithms;pertubation methods. Solitons and Chaos is a response to the growing interestin systems exhibiting these two complementary manifestationsof nonlinearity. The papers cover a wide range of topics butshare common mathematical notions and investigationtechniques. An introductory note on eight concepts ofintegrability has been added as a guide for the uninitiatedreader. Both specialists and graduate students will findthis update on the state ofthe art useful.Key points: chaos vs. integrability; solitons: theory andapplications; dissipative systems; Hamiltonian systems; mapsand cascades; direct vs. inverse methods; higher dimensions;Lie groups, Painleve analysis, numerical algorithms;pertubation methods.I General Questions on Chaos and Integrability.- Integration of Non-Integrable Systems.- Order and Chaos in the Statistical Mechanics of the Integrable Models in 1+1 Dimensions.- Soliton Dynamics and Chaos Transition in a Microstructured Lattice Model.- What is the Role of Dynamical Chaos in Irreversible Processes?.- A Propositional Lattice for the Logic of Temporal Predictions.- Damping, Quantum Field Theory and Thermodynamics.- Quasi-Monomial Transformations and Decoupling of Systems of ODEs.- II Physical Systems with Soliton Ingredients.- Sold