Note 2966 — BOOK XXIII. THE REMEDIES DERIVED FROM THE CULTIVATED TREES.
John Bostock translation
The lees of wine are charged with sub-tartarate of potash, a quantity of colouring matter more or less, and a small proportion of wine. They are no longer used in medicine. Under the term “fæx vini,” Pliny includes the pulp or husks of grapes after the must has been expressed.