Note 2848 — BOOK XXIII. THE REMEDIES DERIVED FROM THE CULTIVATED TREES.

This remark is founded, in a great measure, upon fact. The skin of the black grape contains a colouring principle in considerable abundance, and a small proportion of tannin; that of the white grape possesses no colouring principle, but a considerable quantity of tannin. The white grape contains more saccharine matter than the black one, and they are both of them of a laxative nature.