1911 Encyclopædia Britannica, Volume 16… (1911)
“ LARYNGITIS, an inflammation of the mucus of the larynx. There are three chief varieties: acute, chronic, and oedematous. The larynx is also liable to attacks of inflammation in connexion with tubercle or syphilis. Acute Laryngitis may be produced by an independent catarrh, or by one extending either from the nasal or the bronchial mucous membrane into that of the larynx. The causes are various, “catching cold” being the most common. Excessive use of the voice either in speaking or singing sometimes gives rise to it. ”
