SEPIA (Gr. a iria, cuttlefish)

This article appears in Volume V24, Page 652 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: SCY-SHA

SEPIA (Gr. a iria, cuttlefish) , a deep

brown

BROWN
BROWN,
CHARLES
- CHARLES
- CHARLES (1270-1325)
- CHARLES (1421-1461)
- CHARLES (1525-1574)
- CHARLES (c. 1319-1364)
- CHARLES (Fr. Charles; Span. Carlos; Ital. Carlo; Ger. Karl; derived from O.H.G. Charal,latinized as Carolus, meaning originally " man ": cf. Mod.Ger., Kerl," fellow," A.S. ceorl, Mod. Eng. " churl ")
- CHARLES (KARL EITEL ZEPHYRIN LUDWIG; in Rum. CAROL)
- CHARLES [KARL ALEXANDER] (1712-1780)
- CHARLES, ELIZABETH (1828-1896)
- CHARLES, JACQUES ALEXANDRE CESAR (1746-1823)
- CHARLES, THOMAS (1755-1814)
BROCKDEN (1771-181o)
BROWN, FORD MADOX (1821-1893)
BROWN, FRANCIS (1849- )
BROWN, GEORGE (1818-188o)
BROWN, HENRY KIRKE (1814-1886)
BROWN, JACOB (1775–1828)
BROWN, JOHN (1715–1766)
BROWN, JOHN (1722-1787)
BROWN, JOHN (1735–1788)
BROWN, JOHN (1784–1858)
BROWN, JOHN (1800-1859)
BROWN, JOHN (1810—1882)
BROWN, JOHN GEORGE (1831— )
BROWN, ROBERT (1773-1858)
BROWN, SAMUEL MORISON (1817—1856)
BROWN, SIR GEORGE (1790-1865)
BROWN, SIR JOHN (1816-1896)
BROWN, SIR
WILLIAM
- WILLIAM
- WILLIAM (1143-1214)
- WILLIAM (1227-1256)
- WILLIAM (1J33-1584)
- WILLIAM (A.S. Wilhelm, O. Norse Vilhidlmr; O. H. Ger. Willahelm, Willahalm, M. H. Ger. Willehelm, Willehalm, Mod.Ger. Wilhelm; Du. Willem; O. Fr. Villalme, Mod. Fr. Guillaume; from " will," Goth. vilja, and " helm," Goth. hilms, Old Norse hidlmr, meaning
- WILLIAM (c. 1130-C. 1190)
- WILLIAM, 13TH
, BART
BROWN, THOMAS (1663-1704)
BROWN, THOMAS (1778-1820)
BROWN, THOMAS EDWARD (1830-1897)
BROWN,
WILLIAM
- WILLIAM
- WILLIAM (1143-1214)
- WILLIAM (1227-1256)
- WILLIAM (1J33-1584)
- WILLIAM (A.S. Wilhelm, O. Norse Vilhidlmr; O. H. Ger. Willahelm, Willahalm, M. H. Ger. Willehelm, Willehalm, Mod.Ger. Wilhelm; Du. Willem; O. Fr. Villalme, Mod. Fr. Guillaume; from " will," Goth. vilja, and " helm," Goth. hilms, Old Norse hidlmr, meaning
- WILLIAM (c. 1130-C. 1190)
- WILLIAM, 13TH
LAURENCE (1755–1830)

pigment obtained from the ink-sacs of various species of cuttlefish (q.v.). To obtain sepia the ink-sac, immediately on the capture of the animal, is extracted from the

body

BODY

and speedily dried to prevent putrefaction. The contents are subsequently powdered, dissolved in

caustic

CAUSTIC (Gr. rcavvraubs, burning)

alkali

ALKALI

, and precipitated from the solution by neutralizing with acid. The precipitate after washing with water is ready to make up into any form required for use.
Sepia-bone or cuttle-bone consists of the internal " shell " or skeleton of Sepia officinalis and other allied species. It is an oblong

convex

CONVEX

structure from 4 to to in. in length and t to 3 in. in greatest width, consisting internally of a highly porous cellular

mass

calcium

CALCIUM [symbol Ca, atomic weight 40.0 (o= x6)]

carbonate with some animal matters covered by a hard thin glassy layer. It is used principally as a polishing material and for tooth powder, and also as a moulding material for fine castings in

precious

PRECIOUS (O. Fr. precios, mod. precieux, Lat. pretiosus, of high value or price, pretium)

metals.

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