A second Blackboard Cavalier (1956) or up the ivy-covered wall with Matt Grennan, who perished at a more prestigious institution because he didn't publish and now finds himself at Addison College. Addison is an outpost of wholesome conservatism: its faculty consists of underachievers: and its cultural gap is really an abyss-mal dullness. Still Grennan is determined to keep his nose clean and his energies directed on his 18th century scholarship until he is involved in defending a student's expulsion and a sit-in, and in a romance. . . . Not as genuinely funny as the first book, but a pleasant liberal education enlivened by Mr. Morressey's casual backchat.