Catalepſy is occaſioned by a Relaxation of the Fibers of the Emporium, which cannot receive the outward Impreſſions, whereby the Soul has its Senſations, and yet give a free Paſſage to the Animal Spirits into all the Parts, whither they may be conveyed independently upon the Will. The Relaxation of the Fibers of the Emporium is occaſioned by a thin Seroſity, which remains in the very Texture of the Fibers, to relax them without leſſening their Cavity, as it happens in the periodical Oedema’s, that are daily obſerved upon ſeveral Parts of the Skin.