All the experiments reported here were done with E. coli
strain B. These were grown from a stock culture in Medium C
of fiber& et al. (3). After 2 hours of growth (log phase) 1 ml of
inoculum, containing about lo8 bacteria per ml, was added to 5
ml of fresh Medium C in a standard test tube. To this was added
1 ml of Medium C (minus the glucose) containing a specified
quantity of the platinum complex to make the total solution up
to the required concentration. Medium