--The pamicle, a green.
548. BERBERIS vulgaris. BARBERRIES.--The inner bark, a yellow.
549. BROMUS secalinus. BROME-GRASS.--The panicle, a green.
550. BIDENS tripartita. HEMP AGRIMONY..--The herb, a good yellow.
551. BETULA alba. BIRCH.--The leaves, a yellow.
552. BETULA nana. DWARF-BIRCH.--The leaves, a yellow.
553. BETULA Alnus. ALDER.--The bark affords a brown colour; which with
the addition of copperas becomes black.
554. CALENDULA officinalis. COMMON MARIGOLD.--The radius of the corolla,
if bruised, affords a fine orange. The corolla dried and reduced to
powder will also afford a yellow pigment.
555. CALTHA palustris. MARSH-MARIGOLD.--The juice of the corolla, with
alum, gives a yellow.
556. CAMPANULA rotundifolia. ROUND-LEAVED BELL-FLOWER.--A blue pigment
is made from the corolla; with the addition of alum it produces a green
colour.
557. CARPINUS Betulus. HORNBEAM.--The bark, a yellow.
558. CHAEROPHYLLUM sylvestre. COW-PARSLEY.--The umbels produce a yellow
colour, and the juice of the other parts of the plant a beautiful green.
559. CARTHAMUS tinctorius. SAFFLOWER.--The radius of the corolla,
prepared with an acid, affords a fine rose-coloured tint.
560. CENTAUREA Cyanus. BLUE-BOTTLE.--The juice of the corolla gives out
a fine blue colour.
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