Page:Philosophical Review Volume 3.djvu/760

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The author summarizes the results of his study of Bunyan's mentality somewhat as follows :

(1) Diathesis. A sensitive and probably somewhat burdened nervous constitution; no evidence of serious hereditary weakness; genius. (2) Childhood. Frequent nocturnal and even diurnal terrors of a familiar kind. (3) Youth. (Marriage; poverty; religious anxiety.) Elementary insistent dreads of a conscientious sort. Later: collection of habits of questioning and doubt, quickly passing normal limits. (4) Manhood. (Physical condition vaguely neurasthenic.) Highly systematized mass of insistent motor speech-functions, painful, and attended by more dreads, doubts, and questionings. Persists, with one remission; contents of the insistent elements undergoes change; crisis follows, resulting in comparatively benign secondary melancholic depression, physical improvement, and cure of insistent impulses. No permanent relapse, owing to skillful self-imposed mental regimen.

E. B. T.

Experiments on larvae of Rana temporaria show that the first appearance of rotatory vertigo is coincident in time with the completion of the development of the semi-circular canals. This accords well with the labyrinth theory of the static sense.

E. B. T.

The orchestral a is approximately the middle tone of the ' line of hearing' ( the range of our auditory sensations; corresponding to the 'field of vision'). In old age the line of hearing embraces ten, in youth eleven octaves.

E. B. T.

In trying to know ourselves by reflection, we create new states of consciousness, and, since these states actually constitute us, we