Edgar Ansel Mowrer, 84, author, lecturer and once considered the dean of American foreign correspondents, died Wednesday on the Portuguese Atlantic island of Madelra.

A former syndicated columnist for the Chicago Daily News, he had lived near Tamworth, N.H. since he retired in 1969. He and his wife, Lillian, had been staying in Madeira since December.

Mr. Mowrer won the Pulitzer Prize as a foreign correspondent in 1933 for a book warning about the rise of Adolph Hitler.

He had viewed first-hand many of the major events of modern history and personally knew many of the leaders, particularly prior to World War II.

Born in Bloomington, Ill., Mr. Mowrer studied at the University of Chicago, but left the school to attend the University of Paris.

After a year, he returned to this country and graduated from the University of Michigan in 1913. He then went back to Paris, where his brother, Paul Scott Mowrer, was a correspondent for the Chicago Daily News.

Edgar Mowrere had no intention of becoming a journalist but was pressed into service when his brother was sent out to cover the battle of the Marne in World War I.

He filed dispatches to the Chicago, Daily News from Paris and later was assigned to the Rome office, where he interviewed Benito Mussolini and reported on the latter's bellicose intentions.

Mr. Mowrer was transferred to Berlin in 1923. There he produced several books, including "Germany Puts the Clock Back," which were subsequently banned in that country.

As president of the Foreign Press Association, he defied the Nazis and eventually resigned that position in return for the freedom of a Jewish correspondent who was a friend.

Recalled to this country by the Chicago Daily News, Mr. Mowrer lectured for a brief period on the threats of Fascism. He was reassigned in 1934 to the Paris bureau of the Chicago Daily News and covered the events that led to the outbreak of World War II.

He also covered the beginning of the Spanish civil war, visited the Soviet Union and China and returned to Paris, where he remained until the fall of France in 1940.

Mr. Mowrer then was assigned to Washington, where he collaborated on a series of articles on fifth-colume activities in Europe. From 1941 to 1943, he was with the Office of War Information and broadcast news analysis from Washington.

After the war, he wrote a book, "The Nightmare of American Foreign Policy," and warned that this country must choose between world leadership or rapid decline.

In another book, "Challenge and Decision: A Program for the Times of Crisis Ahead," he urged the United States to form a "peace coalition" and the creation of a federation of non-Communist countries.

Mr. Mowrer's articles appeared in the Saturday Review, Zionist Quarterly, Western World and the New Leader. In 1961, he wrote a book, "An End to Make Believe," in which he analyzed the history of the cold war and what it meant to Americans.

From 1957 to 1960, he was editor-in-chief for North America of Western World, an international monthly published in English and French editions, which promoted strengthening of the Atlantic community.

He also wrote a column analyzing world affairs for the McClure Newspaper Syndicate.

Mr. Mowrer had served as a consultant to Radio Free Europe and had been a trustee of Freedom House.

His wife, who survives, also is an author of note.