Total, in 1834, 4180 tons; in 1835, 3899 tons. (6 blocks = 1 ton.)

TINCAL, crude borax.

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 colouring-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.

TINCTURE is a title used by apothecaries to designate alcohol, in a

somewhat dilute state, impregnated with the active principles of either

vegetable or animal substances.

TIN-GLASS, is a name of bismuth.

A Dictionary of Arts, Manufactures and Mines containing a clear exposition of their principles and practice · 第 398 / 421 题