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Titration of Activity of Extracts 1/40, 2/40, 3/40
Titration of Activity of Extracts 1/40, 2/40, 3/40
Contributor(s):
MacLeod, Colin M. (Colin Munro), 1909-1972 Avery, Oswald Theodore, 1877-1955
Caption by Maclyn McCarty reads: "Tests of trial extracts made in presence of fluoride illustrating the variability of results and the lack of reliability of fluoride as an inhibitor of inactivation. Extracts 1/40 and 2/40 were prepared with small batches of organism and showed some (but quite limited) activity. Extract 3/40, using organisms from 30 liters of culture, lacked transforming activity."
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