before remarked, light or electricity are so.
By various abuses, among which the habitual use of such agents as green tea is one, this fluid may be affected as to its quality, but it is more frequently disturbed as to equilibrium. This fluid being that which we have in common with spirits, a congestion found upon the masses of brain or nerve, connected with the interior sense, forms a surface unduly exposed, on which disembodied spirits may operate: communication is thus more or less effectually established. Between this brain circulation and the heart circulation there is an intimate sympathy. The seat, or rather the instrument of exterior vision, is the eye. The seat of interior vision is the nervous tissue and brain, immediately about and above the eyebrow. You remember how effectually I dissipated your pictures by the simple application of iced eau-de-cologne. Few cases, however, can be treated
