Distributed by Astrom Editions. Contents Olof Brandt | Il battistero lateranense da Constantino a Ilaro. Un riesame degli scavi (pp. 7–65) Daniel Fuglesang | Two unpublished chamber tombs from San Giovenale (pp. 67–89) Peter Liljenstolpe | The Roman Blattkelch capital. Typology, origin and aspects of employment (pp. 91–126) Peter Liljenstolpe & Allan Klynne | The imperial gardens of the Villa of Livia at Prima Porta. A preliminary report on the 1997 campaign (pp. 127–147) Manlio Lilli | Un ambiente termale lungo la via Calmazzo—Urvinum Mataurense, presso il vicus di Canavaccio (PS) (pp. 149–155) The Swedish Institute in Rome. Report for the academic years 1996–1997 and 1997–1998 (pp. 157–160) Bibliographical information Opuscula Romana. Annual of the Swedish Institute in Rome (OpRom) 22–23, Stockholm 1998. ISSN: 0471-7309. Softcover, 160 pages.