A. L. Rowse, a leading British historian and author, will speak on "The Elizabethan Renaissance" tonight at 8 p.m. in the McGregor Room of the Alderman Library. Mr. Rowse is the president of the Shakespeare Club at Stratford-on-Avon, a fellow of the British Academy, and has written about and worked with Sir Winston Churchill. He is the author of several books including the biographies of Sir Walter Raleigh and William Shakespeare.