4515
Additions and Corrections On page 1570 in Table I, the column AG,’ should be Solvent Mass Transfer across Ion-Exchange Membranes [J. Am. Chem. SOC.,88,661 (1966)l. By A. S . TOMBALA- deleted. On page 1571 in Figure 1, the expressions involving KIAN,M. WORSLEY, and W. F. GRAYDON, Department G and AGO and in column 2, line 10, the sentence beof Chemical Engineering and Applied Chemistry, ginning “NO free energy. . . ” should be deleted. University of Toronto, Toronto, Ontario, Canada. On page 1572, column 1, line 1, delete the sentence The interaction coefficients reported in Table V were beginning “The limiting values. . . ” incorrect. The corrected table is printed below. In Table VII, the last energy under A H , ” should be - 17.0. Table V. Ion-Water and Water-Membrane Interaction Coefficients
Membrane no. 1
Ion-pair exchange system K+-H+ Na+-H+ Li+-H+ (CHs)dN+-H+ (GIli)4N+-Hf
Interaction coefficients, dynes sec cm-l X l O I 3 fIW* fR
K+, 0.89 Na+, 1 . 5 Li+, 2 . 3 (CHa)aN+, 2.8 (C,Hs)aN+, > 3 . 4
1.7 1.5 0.84 0.41
Thallium in Organic Synthesis. 111. Coupling of Aryl and Alkyl Grignard Reagents [J. Am. Chem. Soc., 90, 2423 (1968)l. By ALEXANDER MCKILLOP,L. F. ELSON, and EDWARD C. TAYLOR, Department of Chemistry, Princeton University, Princeton, New Jersey 08540. Reference 6 should read: H. Gilman and R. G. Jones, J . Am. Chem. SOC., 62,2357 (1940).
