  The baryon Dirac form factor is computed at one-loop order in large-N_c
baryon chiral perturbation theory, where N_c is the number of color charges.
Loop graphs with octet and decuplet intermediate states are systematically
incorporated into the analysis and the effects of the decuplet-octet mass
difference are accounted for. There are large-N_c cancellations between
different one-loop graphs as a consequence of the large-N_c spin-flavor
symmetry of QCD baryons. As a byproduct, the mean-square charge radius is also
computed through a detailed numerical analysis. The predictions of large-N_c
baryon chiral perturbation theory are in very good agreement both with the
expectations from the 1/N_c expansion and with the experimental data.
