With regard to detail, much of the delicacy and refinement of the Greek character was lost, yet this was compensated by greater variety and freedom of treatment, especially in the development of the Acanthus type of foliage. [Illustration: No. 28. Arch of Titus, Rome.] _Development of Ornament_ Decoration was more generally used, pilaster and other panels being occupied with ornament arranged on growth lines, mostly composed of undulate stems, with scrolling branches, clothed with conventional leaves and flowers. There was also a tendency to employ occasionally natural types in foliage, and further variety was obtained by the introduction of human and animal form, which, though originally significant, were used for their æsthetic value. The Roman domestic life was materially different from the Greek, and while they had their Temples, they also had their palaces, public halls and baths, besides the amphitheatre and the circus. [Illustration: No. 29. Typical Roman Ornament.] Excavations at Herculaneum and Pompeii have thrown considerable light on the domestic life of the Romans--their dwellings, decorations and furniture. [Illustration: No. 30. Roman couch. Sepulchral urn, British Museum.] [Illustration: No. 31. Roman Sella.] _Græco-Roman Painted Decoration_ In the luxurious life of the Romans colour [Illustration: No. 32. Graeco-Roman Hall in house of Sallust, Pompeii.] decoration played a conspicuous part, as is evidenced in the painted work of Herculaneum and Pompeii. In this, which is generally known as the Græco-Roman period, the interiors were decorated with paintings, the general scheme being based on an architectural setting, the wall areas being divided into bays by slender columns, sometimes by pilaster panels, with plinth, or dado, frieze, and cornice, the prevailing colours being red, buff and black. [Illustration: Græco-Roman Hanging Lamp Bronze No. 33.] The decoration of the frieze in many instances suggested openings, through which distant vistas could be seen. The bays or spaces between the apparent dividing supports were further decorated with small panel pictures with frames; generally the supports were united by festoons or scrolling detail, the whole expressed by painting in colour without actual relief. The use of glass for glazing windows was employed in the later period; that the Romans were expert workers in glass can be verified by the examples in the National collections. [Illustration: Græco-Roman Hand Lamp and Stand. Bronze No. 34.] For artificial lighting of interiors oil lamps were customary, which were boat shape in form, sometimes used in groups or clusters suspended from branching stems or supported on tripod standards. These were invariably in cast bronze, though terra-cotta was also used, but in either material were extremely beautiful in form and detail.