Technology in response to local needs.

Science serves its readers as a forum for the presentaBef( tion and discussion of important issues related to the adfedera vancement of science, including the presentation of minority or conflicting points of view, rather than by pubwith p lishing only material on which a consensus has been and th reached. Accordingly, all articles published in Scienceincluding editorials, news and comment, and book reened t views-are signed and reflect the individual views of the transp authors and not official points of view adopted by the AAAS or the institutions with which the authors are afillumir filiated. Effe Editorial Board mestic 1978: RICHARD E. BALZHISER, JAMES F. CROW, and di HANS LANDSBERG, EDWARD NEY, FRANK W. PUTNAM, MAXINE SINGER, PAUL E. WAGGONER, F. KARL WILinclud LENBROCK 1979: E. PETER GEIDUSCHEK, WARD GOODENOUGH, and ut N. BRUCE HANNAY, MARTIN J. KLEIN, FRANKLIN A. grass LONG, NEAL E. MILLER, JEFFREY J. WINE needs Publisher WILLIAM D. CAREY incon structi Editor PHILIP H. ABELSON the lo