My Lord John

by Georgette Heyer.Dutton. $8.95. Ungrateful to mention it, when the late Georgette Heyer gave so much pleasure with her Regency comedies, but this endless novel about a brother of Henry V is a terrible bore. To represent a gaggle of Plantagenets as amiable youths doing their virtuous best in difficult times was (see glossary) a sleeveless notion.