ancestors of, [349] and following.

Dolls, why girls play with, [78]-79.

Ears, of chicks, 4;

of fish, [16], [211]-212;

of beasts, [28];

sixth sense in, [166]-167, [189];

of ants, [200]-202;

of other insects, [210];

of jelly-fish, [211];

of various animals, [211]-213;