in relation to the origin of speech, [282-293], [339]

Orang-outang. See [Apes]

Oregon, climate and native languages of, [262]

P

Palæontology. See [Geology]

Parrots, talking of, [128-138];

use of indicative signs by, [158];

denotative and connotative powers of, [179-191], [222-226];

statements made by, [189], [190]