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Science  09 Sep 1949:
Vol. 110, Issue 2854, pp. 262
DOI: 10.1126/science.110.2854.262-a


In my communication "Toxicity and the Chemical Properties of Ions" in the August 19th issue of Science, the ionic field was printed as p½ (p. 194, second column, third line from bottom). It should be r½, i.e. the reciprocal of the square of the ionic radius.