LOST EMPIRES by J. B. Priestley. 364 pages. Atlantic-Little, Brown. $5.95.
SIR MICHAEL & SIR GEORGE by J. B. Priestley. 244 pages. Atlantic-Little, Brown. $4.95.
Britain's J. B. Priestley writes rather more than the average man talks. In the past 44 years he has published 37 plays, 29 volumes of nonfiction and 22 novels. His worst novels read as easy as a rug unrolls, and his best novels (Angel Pavement, The Good Companions) sound like Dickens updated and not too much marked down. Now 71, Priestley gives no evidence of deceleration—in recent months he...