Note 146 — Chapter IV · THE OPEN FIELD SYSTEM TRACED IN SAXON TIMES—THE SCATTERING OF THE STRIPS ORIGINATED IN THE METHODS OF CO-ARATION.
Reading edition
(5) The breadth of a boundary (fin) between two trevs, if it be of land, is a fathom and a half. . . .
(7) Between two erws, two furrows (Ancient Laws, &c., of Wales, p. 373). 'The boundary (tervyn) between two erws, two furrows, and that is called a balk (synach).' (P. 525.)