on geographical distribution, [16] f.;

on Great Auk and its literature, [321] n.;

on habits of Shoveller, [124] n.;

on Hierofalco, [180] n.;

on Humming-birds, [426] n.;

on mimicry, [543] n.;

on mode of progression of young Grebes, [54] n.;

on Oscines, [495];

on Secretary-bird, [142] n.;

on Solitaire, [331] n.;