Matthew Martin, 'Western Isles,' published 1673. Quoted by Elton ('Origins of English Hist.,' p. 16), who gives Martin's date as 1703.
Strabo, iv. 277. The word basket is itself of Celtic origin, and passed into Latin as it has passed into English. Martial ('Epig.' xiv. 299) says: "Barbara de pictis veni bascauda Britannis." Strabo wrote shortly before, Martial shortly after, the Roman Conquest of Britain.
One of these primitive mortars, a rudely-hollowed block of oolite, with a flint pestle weighing about 6 lbs., was found near Cambridge in 1885.