  We review the separation of variables for the Kowalevski top and for its
generalization to the algebra o(4). We notice that the corresponding separation
equations allow an interpretation of the Kowalevski top as a B2 integrable
lattice. Consequently, we apply the quadratic r-matrix formalism to construct a
new 2x2 Lax matrix for the top, which is responsible for its separation of
variables.
