PHILADELPHIA Three University of Pennsylvania faculty members who have distinguished themselves in communications, music and economics have been elected Fellows of the American Academy of Arts and Sciences.

Kathleen Hall Jamieson, dean of Penn Annenberg School for Communication and director of the Annenberg Public Policy Center ; Robert Summers, professor emeritus of economics; and Gary Tomlinson, professor of humanities, will join the new class of 185 Fellows and 26 Foreign Honorary Members from 15 nations.

Jamieson is an expert on political campaigns and has received numerous teaching and service awards, fellowships and grants. She is author or co-author of 10 books including "Everything You Think You Know About Politicsnd Why Youe Wrong,""Packaging the Presidency," "Eloquence in an Electronic Age" and "Beyond the Double Bind: Women and Leadership."

Summers is renowned for his work on the construction of economic aggregates that can be consistently compared across countries. The Kravis-Summers international comparisons of incomes per head corrected for purchasing parity are now widely used. The Heston-Summers Penn World Tables are the source of data for much of the modern empirical work on international comparisons of growth.

Tomlinson, is a past MacArthur Fellow and a spokesman for postmodern scholarship in music with "New Historicist" leanings. He is the author of "Monteverdi and the End of the Renaissance" and "Music and Renaissance Magic, Metaphysical Song: An Essay on Opera."

Members of this year class were selected for their achievements in diverse fields such as math and science, medicine, the arts, business and public affairs. The Academy conducts research on areas of great import to society including arms control, education and the history and future of humanities.

Some of history finest minds and most influential leaders have been Academy members. Notable past members include Ben Franklin, one of the founders of the University of Pennsylvania; George Washington; Albert Einstein; and Winston Churchill. The current membership of 3,600 Fellows and 600 Foreign Honorary members includes more than 150 Nobel laureates and 50 Pulitzer Prize winners.