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.