Stephen, Sir James, on dependence of thought upon language, [85]

Street, A. E., on vocabulary of a young child, [143], [144]

Substantive. See [Noun] and [Verb]

Sullivan, Sir J., on talking birds, [130]

Sully, J., on ideas, [40], [41];

on illusions of perception, [49];

on rise of self-consciousness in the growing child, [201-203], [207], [210], [212]

Sweet, on animistic thought of primitive man, [275];

on the evolution of grammatical forms, [306], [315], [316]

Syntax, of gesture-language, [107-120];