[Meningitis epidemiology (author's transl)].

After having reviewed rapidly the references regarding meningitis epidemiology due to "purulent liquor" and "clear liquor", a personal study of 754 cases of purulent meningitis of different bacterial etiology, and 167 cases of meningitis due to "clear liquor", 107 of which of tubercular etiology and 60 of viral etiology or so supposed, is reported.