The beautiful specimens of materials imported from China, India, New Zealand, the Continent, and other countries, and exhibited at the Crystal Palace, proves to us that we have yet much to learn from other nations in the art of fixing colors and obtaining brilliant dyes.  The French are much our superiors in dyeing and the production of fast and beautiful colors.  Their chemical researches and investigations are carried out more systematically and effectively than our own.  Russia imports dyewoods and dye-stuffs to the value of five millions and a half of silver roubles annually.

It was well observed by the Jury Reporters at the Great Exhibition, that “a vast number of new coloring materials have been discovered or made available, and improved modes have been devised of economically applying those already in use; so that the dyer of the present time employs many substances of the very existence of which his practical predecessors were wholly ignorant.  From the increased use of many of the vegetable colors, and from the improved modes of applying the coloring matters, a demand has naturally sprung up for various dye stuffs; and at the present time, many of the dyeing materials of distant countries are beginning to excite the attention of practical men; for though they have been acquainted with many of these substances, it is only recently that the progress of the art has rendered their use desirable or even practicable.”

It would be quite impossible, within the limits which I have assigned myself, to make even a bare enumeration of the various plants and trees from which coloring substances and dye stuffs can be obtained, I must, therefore, be content to specify only a few.

The roots of some species of Lithospermum afford a lac for dyeing and painting.  Dried pomegranates are said to be used in Tunis for dyeing yellow; the rind is also a tanning substance.

Sir John Franklin tells us that the Crees extract some beautiful colors from several of their native vegetables.  They dye a beautiful scarlet with the roots of two species of bed-straw, Galium tinctorium and boreale.  They dye black, with an ink made of elder bark and a little bog-iron ore dried and powdered, and they have various modes of producing yellow.  They employ the dried roots of the cowbane (Cicuta virosa), the bruised buds of the Dutch myrtle, and have discovered methods of dyeing with various lichens.

In the “Comptes Rendus,” xxxv., p. 558, there is an account by M.J.  Persoz, of a green coloring matter from China, of great stability, from which it appears that the Chinese possess a coloring substance having the appearance of indigo, which communicates a beautiful and permanent sea green color to mordants of alumina and iron, and which is not a preparation of indigo, or any derivative of this dyeing principal.  As furnished to M. Persoz by Mr. Forbes, the American consul at Canton, it was in thin plates of a blue color,