Frequency of Mental Diseases in Mountain Villages in Kume-Gun, Okayama Ken

I have made a report about two villages which may be regarded as random samples of farm villages in mountainious districts, to offer such materials as will help to make accurate statistics in future. Schizophrenia shows a percentage of 0.49 to the population, the corrected frequency being 1.01% (dangerous age 16-40; referred number 2168.0), the percentage of manicdepressive psychosis in 0.04, the corrected frequency 0.12% (dangerous age 21-50; referred number 1710.0) and the percentage of essential epilepsy is 0.11. the corrected frequency 0.17% (dangerous age 21-30; referred number 2922.0).