Low energy pion-pion scattering.- Analytic extrapolations and the determination of pion-pion phase shifts.- Coulomb corrections in the analysis of ?N experimental scattering data.- Kaon-nucleon interactions below 1 GeV/c.- The ?KN coupling and extrapolation below the ¿KN threshold.- Nucleon-nucleon interactions below 1 GeV/c.- Coupling constants from PCAC.- Regge residues.- Vector mesons in electromagnetic interactions.- Coupling parameters of pseudoscalar meson photoproduction on nucleons.- Compilation of coupling constants and low-energy parameters.