—, vegetation and productions of, xxxvii, 15.
Colophane, a tree affording an aromatic oil, ix, 386.
Colophonite, of Willsboro', N. Y., H. Seybert, v, 117.
Color of air and deep waters, and some other analogous fugitive colors, Count Xavier de Maistre, xxvi, 65.f
— of opaline glass, xxvi, 66.
— of leaves in autumn, Macaire Prinsep's views respecting, xvi, 215.
— of the Raphael Tapestries, effect of light and air in restoring, xxxvii, 244.
— of the sea, due in part to iodine and bromine, xvii, 170.
— of wood of certain trees, change of, xviii, 404.
—, blue, from buck-wheat, xxii, 384.