Propagation in 30 mL flasks, prevention type pretreatment with 13th potency in 1/10 volume ratio, curative treatment with 13th potency in 1/60 volume ratio: all combinations, that is, 1 part potency or placebo in 60 parts culture. See description below for clarification. Unlike Figure 11, Tetrahymena inocula were exposed for 24 hours to 13th potency D-GA potency or placebo, before being placed in flasks with culture medium. L-glutamic acid was added to the culture flasks 10 minutes later.
