Caltraps (for cheval-traps). Spikes of metal thrown on the ground to resist a charge of cavalry. In Christian art, attributes of St. Themistocles.

Calvary, Chr. An arrangement of small chapels or shrines in which the incidents of the progress to the scene of the crucifixion are represented. To each such “station” appropriate prayers and meditations are allotted.

Calvatica. (See Calautica.)

Calyptra (from καλύπτω, to hide). A veil worn by young Greek and Roman women over the face. It is also called caliptra, but this term is less used.

Camail (for cap-mail). A tippet of mail attached to the helmet. In mediæval Latin called camale, camallus, camelaucum, calamaucus, calamaucum.

Camara. (See Camera.)

Camayeu. Monochrome painting, i. e. in shades of one colour, or in conventional colours not copied from nature.

Camber, Arch. A curve or arch.

Camboge or Gamboge. A gum-resin, forming a yellow water-colour. The best gamboge is from Siam, and the kingdom of Camboja (whence its name). It should be brittle, inodorous, of conchoidal fracture, orange-coloured or reddish yellow, smooth and somewhat glistening. Its powder is bright yellow. An artificial gamboge, of little value, is manufactured with turmeric and other materials.

Cambresian Faience. The “poterie blance” of Cambrai is mentioned in a MS. of the 16th century. It was an enamelled faience.