A case is related by Dr. Gerner,§ in which a young lady, in consequence of exposure to cold, entirely lost her voice. Numerous remedies were tried in vain, for three months. She, at last, completely recovered her voice in three days from the inhalation of Ammoniacal vapour, disengaged from a mixture of a solution of the Hydrochlorate of Ammonia and Carbonate of Potash.