Pugh's Welsh Dict., p. 328: 'Marl, earth deposited by water, a rich kind of clay (with many compounds).'
See Chron. Monas. Abingdon. II. xxx. P. 147, 'on tha lampyttes;' p. 402, 'on thone lampyt' ('lam,' loam, mud, clay.—Bosworth, p. 41 b). Pp. 150 and 404, 'on tha cealc seathas' (chalk-pits).
See Liber de Hyda, p. 88, 'caelcgrafan' (chalk-pits).
Compare Pliny (ubi supra) with Abingdon, ii. p. 294: 'Totam terram quæ nimis pessima et infructifera erat tam citra aquam quam ultra compositione terræ quæ vulgo "Marla" dicitur, ipse optimam et fructiferam fecit.' (Colne in Essex.)
[333.] In his Agricola, xii.
[334.] Agricola, xix.
[335.] Strabo, Bk. IV. c. v. s. 2.
[336.] Mon. Brit. Excerpta, ii.
[337.] Elton's Origins of English History, p. 32.
[338.] Siculus Flaccus, De Conditionibus Agrorum. Gromatici veteres. Lachmann. P. 152. The passage will be given in full hereafter.