  The 't Hooft model for the two-dimensional QCD in the limit of infinite
number of colours is studied in the axial gauge. The mass-gap and the
bound-state equations are derived using the two consequent Bogoliubov-like
transformations. Chiral properties of the model are studied in the Hamiltonian
and matrix approaches to the latter. Special attention is payed to the explicit
pionic solution of the bound-state equation.
