title: Erratum.
abstract: In the 26 December issue [Science 128, 1614 (1958)], the solutions to the problem "A door opening was 3 feet 9 inches higher than it was wide. Which one of the following best expresses the area of the door opening, in square inches, after the opening has been heightened 2 inches and narrowed 3 inches?" were erroneously given as A) lc + (x/w) B) l + (w/cx) C) l + (cw/x) D) (l + cw)/x E) (l + cx)/w The possible solutions should have been A) x(2) + 44x - 141 B) x(2) + 47x + 141 C) x(x + 45 ) + 66 D) x(2) + 45 + 72 E) (x + 45) (x - 3).