Opus Pseud-iso-domum, Gr. (lit. quasi-equal structure). A Greek method of building in which the courses are (1) parallel and unequal, but regular among themselves, as in Fig. [506]; or (2) irregular altogether, as in the Gate of Lions at Mycenæ, Fig. [507] (or in Fig. [504]).

Fig. 507. Gate of Lions at Mycenæ. Pseud-iso-domum opus.

Opus Pulvinarium (cushion-style). Embroidery like modern Berlin work, generally used for cushions.

Fig. 508. Structura reticulata.

Opus Reticulatum, R. A Roman method of construction, with an ornamental surface resembling the meshes of a net.

Fig. 509. Spicatum opus.

Opus Spicatum, R. Herring-bone masonry.