MARSTON (MAGNA), a parish in the hundred of HORETHORNE, county of SOMERSET, 5 miles (N. N.E.) from Yeovil, containing 324 inhabitants. The living is a discharged vicarage, in the archdeaconry of Wells, and diocese of Bath and Wells, rated in the king's books at £6. 10. 10., endowed with £200 private benefaction, and £200 royal bounty. Mrs. Williams was patroness in 1785. The church, dedicated to St. Mary, is a neat stone structure, with a strong tower crowned with an embattled pediment and pinnacles. In the porch, two feet below the surface of the earth, have lately been found several large stones carved with crosses entwined with palm leaves, and covering human skeletons. Sir John St. Barbe, in 1736, devised the rectory, parsonage-house, and lands for the education of ten poor boys of this parish and that of Ashington: fourteen children are instructed. On opening a pit in 1788, near the margin of a brook, some fine specimens of a calcareous blue stone, almost filled with Cornua Ammonis, overspread with white pearl, were discovered, and raised in masses sufficiently large to form slabs, which took a beautiful polish, and were much in request for side tables. In the same field irregular heaps of mundic, with large metalliferous Cornua Ammonis, were also found; and the quarries on the hills, from one of which the brook takes its rise, abound in Ammonites Nautili, Belamnites, &c.