Res Rustica
Columella, Lucius Junius Moderatus
Columella. On agriculture, Volume 1-2. Ash, Harrison Boyd; Foster, Edward Seymour; Heffner, Edward H., editors. Cambridge, MA; London: Harvard University Press; William Heinemann, Ltd., 1941.
Quidam, cum vitiosam partem inusserunt, urina vetere humana eluunt,[*]()atque ita aequis ponderibus incocta pice liquida cum vetere axungia linunt.