Because of incorrect information supplied to The Sun, a brief article in yesterday's Business section misrepresented the relationship between chemical maker W.R. Grace & Co. and CeraTech Inc., which makes quick-drying concrete mixtures from industrial waste. Grace made a "strategic investment" in the company but did not acquire the firm.
Because of an editing error, the name of constitutional activist Dane vonBreichenruchardt was misspelled in a front-page article Tuesday about a legal challenge to a District of Columbia gun ban.
