Speculum, [22];

in ducks, [114] f.

Speed of flight, [20]

Spel of Capercaillie, [237]

Speotyto, [398]-[402];

S. cunicularia, [400] f., [409] f., [410]

Sperling, on Sooty Tern, [312] n.

Spermestes, [577]

Sphecotheres, [542], [543];

S. maxillaris, [543]