In the outbreak of poliomyelitis at Melbourne in 1937-1938, 174 persons had paralytic poliomyelitis, of whom 152 with paralysis survived. Twelve died, six recovered without paralysis and four were nonresidents. Thirty-six recovered after periods of treatment ranging from three to twelve months and were discharged. One hundred and one were still under treatment at the time of the report. The report, however, constitutes particularly a good epidemiologic study of infantile paralysis.