WASHINGTON (AP) _ A group that represents fraternities at 900 college campuses throughout the United States and Canada wants to eliminate hazing, a practice that has led to 40 student deaths over the past decade.

''Hazing has no place in the fraternity experience. It is a dangerous form of intimidation that makes a mockery of fraternal love and we're dedicated to eradicating it in the fraternity system,'' said Jonathan Brant, executive director of the National Interfraternity Conference.

Brant said his group defines hazing as any action or situation intended to produce mental or physical harassment, embarrassment or ridicule.

The National Interfraternity Conference, based in Indianapolis, represents 59 major fraternities with 5,155 chapters and more than 400,000 student members in the United States and Canada.

Brant said the conference had adopted an anti-hazing resolution more than 30 years ago and that most fraternities have had rules against hazing for the past two decades.

''We are painfully aware that in the past 10 years, more than 40 students have died and hundreds have been seriously injured by student organizations in what have been referred to as 'hazing-related incidents,''' Brant said.

The anti-hazing campaign will involve distribution of printed materials on campuses, organizing discussion groups at fraternity chapters and publishing articles in alumni magazines, he said.

Fraternity pledging evolved in the late 19th century and was meant to be a rite of passage for new recruits before their initiation as full members.

--- Baker, Shevardnadze Meeting in Wyoming Set

WASHINGTON (AP) - Secretary of State James A. Baker III and Soviet Foreign Minister Eduard A. Shevardnadze will meet Sept. 22-23 at a lodge in the Grand Teton National Park outside Jackson, Wyo., the State Department said.

The meeting is designed to lay the groundwork for a summit between President Bush and Soviet President Mikhail S. Gorbachev.

State Department spokeswoman Margaret Tutwiler said Friday that topics will include arms control, human rights and regional conflicts.

Baker and Shevardnadze agreed in Paris in late July to hold the summit preparatory discussions in Wyoming, where Baker has a ranch.

--- Medicare Would Pay for Mammography Tests Under Proposed Rule

WASHINGTON (AP) - Medicare will pay for routine mammography tests to detect breast cancer beginning Jan. 1 under a regulation proposed by the government.

Congress authorized Medicare coverage of mammography examinations last year, making an exception to the law that prohibits Medicare payments for routine physical checkups.

One out of 10 women will develop breast cancer in her lifetime, according to medical experts, and elderly women have the highest risk.

The regulation, drafted by the Department of Health and Human Services, was published in Friday's Federal Register. After 60 days of public comment, a final regulation will be drafted.

Under the law, Medicare will pay for mammography tests every two years for women 65 and older. For younger women on Medicare because of disability, the program will cover mammography tests annually for those ages 50 to 64 and for women ages 40 to 49 who are at high risk of developing breast cancer. It also will cover the exams every other year for those ages 40 to 49 who are not at high risk and will pay for one exam for those ages 35 to 39.

Coverage of mammographies is expected to cost $150 million in fiscal year 1990 and $275 million in fiscal 1991.

--- Washington Mayor Complains to Thornburgh About Leaks

WASHINGTON (AP) - Mayor Marion Barry wants to meet with Attorney General Dick Thornburgh about media reports that federal investigators have been told the mayor smoked crack on several occasions.

Barry said in a letter to Thornburgh on Friday that disclosures concerning the Justice Department's investigation into his links with convicted drug dealer Charles Lewis have damaged his ability to govern.

He said he hoped Thornburgh would follow U.S. Attorney Jay B. Stephens' request for a full investigation into the disclosures.

David Runkel, the Justice Department's chief spokesman, refused Friday to comment directly on the mayor's request, but indicated that an inquiry is standard in such cases.

Stephens declined to comment on whether Lewis has implicated Barry, but said he wants the Justice Department to investigate whether stories about Lewis' cooperation originated with law enforcement officials.

Local television stations and newspapers have reported that Lewis told investigators he smoked crack with Barry in Lewis' hotel room in December and that federal investigators have said they believe they have enough evidence to seek an indictment of Barry on perjury and obstruction of justice charges.

For the past several years, Barry has been dogged by rumors that he uses drugs. On Thursday, he said again that he never saw or used drugs during at least six visits to Lewis' room.