MOUNT BEULAH, Miss., October 3--Fifty-two law students and 14 lawyers gathered here for a lesson on the Mississippi way of life given by some of the state's most prominent Negro leaders.

The group, which includes eight Harvard law students, is here at the request of the Mississippi Freedom Democratic Party. They will provide legal advice to voters in nine counties where Negro candidates are running.

More than half of the students, who attend law schools from the University of Washington in Seattle, to Emory College in Atlanta, Ga., are Negro. "We were surprised and delighted," said Charles Horowitz, a civil rights worker in the National Council of Church's Delta Ministry. "At last blacks are showing blacks how to do it."

In the auditorium of the Delta Ministry's Mount Beulah headquarters, Mississippi political workers stressed that the students were here only as technical advisers on legal matters. "Remember, you cannot change our world in four days. That's not your job," said James Lewis, of the Lawyer's Constitutional Defense Committee.

Most of the eight Harvard students had never been South before. Marva Jones, a third-year student is, on the other hand, a veteran of civil rights works in Lowndes County and Anniston, Ala. She came down because she wanted to see what had been accomplished since then. "There has been change," she remarked. "When I was down here in '64 nobody spoke to us about getting Negroes to overcome their fear of voting. They weren't allowed to vote."