We prove that if a graph G on n greater than or equal to 32 vertices i
s hamiltonian and has two nonadjacent vertices u and v with d(u) + d(v
) greater than or equal to n + z where z = 0 if n is odd and z = 1 if
n is even, then G contains all cycles of length m where 3 less than or
equal to m less than or equal to 1/5(n + 13).