Show r GUARDING AGAINST THE POLLUTED OYSTER WIM 1 11 3 7 IN M X A the agricultural department maintains at washington a bacteriological laboratory where all sorts of bugs are discovered in all sorts of 0 food at this time of 0 tho the year when the oyster season Is iq at its height little to la done in this place except to test oysters and the water in which they live to determine whether or not they contain typhoid germs the photograph shows dr george stiles chief of the laboratory and his two assistants 1 alas ruth C greathouse and miss alias maude L mason |