A typographical error appeared in the letter from William B. Katz, president of Illinois Chemical Corp., Highland Park, Ill., in the March issue. Mr. Katz's firm does "a bit over $750,000 a year in sales," not $75,000.

In "Sole Success" (February), the Abington Shoe Co. was mistakenly identified as being located in "a former piano warehouse in South Boston." The building was in Boston's South End -- a different part of town.