perceptions of, show conjunction of mental processes, [159] f.

State of consciousness, a misleading phrase, [21].

Stereoscope, [128].

Stimulus, a technical term in experimental psychology, [24];

the ‘biological’ stimuli to attention, [95], [165];

‘situational’ stimuli, [165] f.

Strain, sensation of, [46].

Strangeness, feeling of, [194] f.;

derivation of, [195];

makes an idea into an idea of imagination, [195].