jambs (A.D. 772 to 795) ----------------------------------------------------------- XXXIX. Key pattern, S. Apollinare Nuovo, Ravenna Vine ” 246 scrolls, S. Apollinare Nuovo, Ravenna ----------------------------------------------------------- Plaitwork of Romano-British pavement at Lydney Park, XL. Gloucestershire ” 258 Plaitwork in ciborium in the church of San Clemente, Rome (fifth century) ----------------------------------------------------------- XLI. Erect cross-slab from Collieburn, Sutherland, now in the Dunrobin Museum ” 274 ----------------------------------------------------------- XLII. Detail of ornament on erect cross-slab at Nigg, Ross-shire ” 276 ----------------------------------------------------------- Four men placed swastika fashion on recumbent pavement at Meigle, Perthshire. Scale ⅛ linear XLIII. Spiral ornament on fragment of sculptured stone ” 288 from Tarbet, Ross-shire, now in the Edinburgh Museum ----------------------------------------------------------- XLIV. Detail of ornament on erect cross-slab at Nigg, ” 292 Ross-shire ----------------------------------------------------------- PREFACE