A Dictionary of Arts: Terra-Cotta. Terra di Siena. Tinctorial matter. Turkey Red.

A Dictionary of Arts, Manufactures, and Mines; containing A Clear Exposition of Their Principles and Practice

by Andrew Ure, M. D.;
F. R. S. M. G. S. Lond.: M. Acad. M. S. Philad.; S. PH. DOC. N. GERM. Ranow.; Mulh. Etc. Etc.

Illustrated with nearly fifteen hundred engravings on wood
Eleventh American, From The Last London Edition.
To which is appended, a Supplement of Recent Improvements to The Present Time.

New York: D Appleton & company, 200 Broadway. Philadelphia: George S. Appleton, 148 Chestnut St.
MDCCCXLVII

1847

TERRA-COTTA, literally baked clay, is the name given to statues, architectural decorations, figures, vases &c., modelled or cast in a paste made of pipe or potter's clay and a fine-grained colourless sand, from Ryegate, with pulverized potsherds, slowly dried in the air, and afterwards fired to a stony hardness in a proper kil. See STONE, ARTIFICIAL.

TERRA DI SIENA is a brown ferruginous ochre, employed in painting.

TINCTORIAL MATTER. One of the most curious and valuable facts ascertained upon this subject, is, that madder kept in casks, in a warm place, undergoes a species of fermentation, which, by ripening, or rather deoxidizing the coloring-matter, increases its dyeing power by no less than from 20 to 50 per cent. See M. H. Schlumberger's memoir read to the Société Industrielle de Mulhausen, 24 November, 1837.

TURKEY RED, is a brilliant dye produced on cotton goods by MADDER.