The following account of colour-printing from wood-blocks is based on a study of the methods which were lately only practised in Japan, but which at an earlier time were to some degree in use in Europe also. The main principles of the art, indeed, were well known in the West long before colour prints were produced in Japan, and there is some reason to suppose that the Japanese may have founded their methods in imitating the prints taken from Europe by missionaries. Major Strange says: "The European art of chiaroscuro engraving is in all essentials identical with that of Japanese colour-printing.... It seems, therefore, not vain to point out that the accidental sight of one of the Italian colour-prints may have suggested the process to the Japanese."