By GIAN SINGH, m.b., b.s., d.imi., Medical Officer of Health, Multan City, Punjab. On the morning of the 12th May, 1926, ' was informed by a sanitary inspector that on the previous day in one mohalla of the town about twenty-five persons had shown simultaneously symptoms of cholera, i.e., vomiting* purging and collapse. I at once visited the molialla and found that all these persons had taken "...