  We compute nonanalytical pion-loop corrections to baryon masses in a combined
expansion in chiral symmetry breaking and 1/N_c, where N_c is the number of
colors. Specifically, we compute flavor-27 baryon mass splittings at leading
order in chiral perturbation theory. Our results, at the physical value N_c=3,
are compared with the expressions obtained in heavy baryon chiral perturbation
theory with no 1/N_c expansion.
