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.
Hordei modii quinque bubulci operas tres exigunt, occatoriam unam, sartoriam unam et dimidiam, messoriam unam: summam operarum sex et dimidiam. Fabae modii quattuor vel sex in vetereto duas operas bubulcorum detinent, at in restibili unam; occantur sesquiopera, sariuntur sesquiopera et una opera [*]()iterum, tertium [*]()sariuntur una opera, metuntur una: summa fit operarum octo vel septem.
Viciae modii sex vel septem in vetereto bubulcorum duas operas volunt, in restibili unam, [*](Seminis S: si seminis AR: Sesamii vel Sesami vulgo ante Schn.; sed Pontedera adorei proposuit. ) [*](sariuntur s. e. u. opera Lundström: sariuntur sex una opera R plerique; om. SA: sarriuntur sesquiopera, iterum sarriuntur una opera, et tertio una vulgo. ) [*](tertium add. Lundström. a I.e., in modern botanical usage, dicotyledonous. b The amount of seed required for sowing one iugerum; cf. II. 9. 1. )