Fæcal Bacteria in Bengal as Indicators of Sewage Contamination of Water : A Preliminary Study

The method which we follow in the bacteriological analysis of water in Bengal was based on that used by Col. Clemesha in the study of flora of the human faeces in Madras. As the diet of the people of the Presidency of Bengal amers somewhat from that of the people of ^adras, one might suspect tlie^ faecal flora the two provinces to be not quite the same, detailed bacteriological examination of the ? ools of this province may prove to be of help assaying the import of these bacilli, indivic llally and in association, in interpretation of the ^sult of analysis of water, so we have examined ne stools of twenty-five persons of this province as a preliminary measure. Colon bacilli in Bengal faeces :?In his research in Madras, Col. Clemesha examined 751 colonies of lactose fermenters from forty-three ?t??ls; we examined 734 colonies. They were lcientified by the fermentation tests ^ on