in general, replaces causation and interpretation, in work of science, [327], [331].

Curiosity, [205] f., [301] f.

Demonstrative gesture, [268].

Depth, perception of, see [Distance, perception of].

Description, the business of science, [8], [14], [331];

implies analysis, [17].

Desire, [256] f.

Differential psychology, [31] f., [309].

Discrimination, experiments on, [254], [283] ff.