Includes 2 reprints of articles by Robert A. MacLeod and Esmond E. Snell reprinted from Journal of biological chemistry: Some mineral requirements of the lactic acid bacteria. Vol. 170, no. 1 (Sep. 1947), p. 351-365 -- The effect of related ions on the potassium requirement of lactic acid bacteria. Vol. 176, no. 1 (Oct. 1948), p. 39-52.
Thesis (Ph. D.)--University of Wisconsin--Madison, 1949.