In the matter of the libel of J.A. Johnson of the schooner "G.M. Porter" v. schooner "Alfred Brabrook," and the cross libel of J.M. Phillips et al., of schooner "Alfred Brabrook" v. the owners of schooner "G.M. Porter": brief in behalf of appellants, the claimants of the "Alfred Brabrook," and idem as cross-libellants v. the "G.M. Porter."