Boll

n. [M. & N. H. Ger. bolle, a seed-vessel of flax. The W. bwl, the husk or hull inclosing flax-seed, is certainly taken from English. Cf. Bowl., n.]

1. The pod or capsule of a plant, as of flax; a pericarp of a globular form.
2. A Scotch measure, formerly in use: for wheat and beans it contained four Winchester bushels; for oats, barley, and potatoes, six bushels. A boll of meal is 140 lbs. avoirdupois. Also, a measure for salt of two bushels. [Sometimes spelled bole.]

Ogilvie.