Abstract
In the Letter to the Editor by P. van Duijn and M. J. Hardonk (Volume 14, No. 9, September 1966, page 683), item 1 in the third paragraph, left column, should read "(1) N-sulfinic acids are reported by Rumpf (Ann. Chim. (Paris) 3: 327, 1935) to be very labile in aqueous solution..."