CHARACTER OF THE EXPIRED AIR.
The breath is sensibly warmer in excited breathing, high fever, and acute bronchitis and pneumonia. It is cool in most chronic diseases, in advanced consumption and hydrothorax. Its odor is vegetable and acid in the acute indigestions of cattle, and fetid in many chronic diseases of the air passages attended with destruction of tissue, or the escape of imprisoned pus, but especially fetid in gangrenous sore throat or gangrene of the lung.