A Book on Vegetable Dyes

by Ethel Mairet

Ferrous sulphate, [29].

Flavin. A colouring matter extracted from quercitron.

Fleece, various kinds of, [13].

Flesh colour, [132].

Full, to. To tread or beat cloth for the purpose of cleansing and thickening it.

Fuller's Herb. Saponaria officinalis. A plant used in the process of fulling.

Fuller's Thistle or Teasle. Dipsacus fullonum. Used for fulling cloth.

Fustet. Young fustic. Venetian Sumach. Rhus cotinus. It gives a fine orange colour, which has not much permanence.

[Fustic], [113-116], [130], [131], [135].

G.—Galls, Gall nuts, [26], [129]. Oak galls produced by the egg of an insect,—the female gall wasp. An excrescence is produced round the egg, & the insect, when developed, pierces a hole & escapes. Those gall nuts which are not pierced contain most tannic acid. The best come from Aleppo and Turkey.