Erratum
The seventh sentence of the first paragraph of the letter from P. W. Anderson, E. Abrahams, and R. Laughlin that appeared in the issue of 1 March (pp. 1005-1006) was printed incorrectly. It should have read, "Others, such as the `anyon' proponents, a group at Bell laboratories and Rutgers, and another at Princeton, are sure that this system is not a Fermi liquid."