Ennui, or tædium vitæ, [xxxiv. 2. 3]. [xxxiii. 1. 1]. [xxxix. 6].

Epileptic fits explained, [xxxiv. 1. 4]. [xxvii. 2].

—— in sleep, why, [xviii. 14]. & [15].

Equinoxial lunations, [xxxii. 6].

Excitability perpetually varies, [xii. 1. 7].

—— synonymous to quantity of sensorial power, [xii. 1. 7].

Exercise, its use, [xxxii. 5. 3].

Exertion of sensorial power defined, [xii. 2. 1].

Existence in space, [xiv. 2. 5].

Extension, sense of, [xiv. 7].