The remains of Lawrence Fernsworth, a Washington newspaperman for more than 50 years who disappeared while walking near his family farm at Warner, N.H., on Oct. 24, 1977, have been positively identified, the New Hampshire State Police said yesterday.

Maj. Richard Campbell said the identification had been made from a diamond ring and the contents of a wallet, which were found near a skeleton. It was discovered June 30 beside a stream near a wooded road where Mr. Fernsworth, who was 84 when he disappeared, had been walking. There were no indications of foul play, Campbell said.

Mr. Fernsworth began his Washington newspaper career during the presidency of Warren G. Harding. He worked for numerous publications over the years and was a correspondent for The New York Times and The Times of London in Spain during the civil war there in the 1930s.

He also had worked with Drew Pearson and I. F. Stone in Washington. At the time of his disappearance, he was still running the Fernsworth News Service, which served newspapers in California and Tennessee. He spent much of his time on Capitol Hill.

Mr. Fernsworth was born in Beaverton, ore. He began his newspaper career there and at one time operated a weekly in beaverton.

He published a book about the Spanish Civil War called "Spain's Struggle for Freedom." He contributed a profile of Winston Churchill to another book, "Dictators and Democrats."

Survivors include a daughter, Jeannie Fernsworth-Harvey, of Somerville, Mass., a son, Lawrence, of San Jose, Calif., and three grandchildren.