RENAISSANCE ART -- Ronald LIGHTBOWN. Sandro Botticelli, London: Paul Elek, 1978, 2 volumes, 4° -- Donald POSNER. Annibale Carracci, London: Phaidon, 1971, 2 volumes, 4° -- Peter HUMFREY. Cima da Conegliano, Cambridge: C. U. P., 1983, 4° -- Irving LAVIN. Bernini and the Unity of the Visual Arts, New York & London: Pierpont Morgan Library & O.U.P., 1980, 2 volumes, 4°; and 17 others, most on Renaissance artists. (24)