SULLY (SULWY), a parish, in the union of CARDIFF, hundred of DINASPOWYS, county of GLAMORGAN, SOUTH WALES, 64 miles (S. S. W.) from Cardiff; containing 197 inhabitants. This parish is situated on the shore of the Bristol Channel, by which- it is bounded on the south, and nearly opposite to a small island of the same name. It is of very limited extent, comprising onlya moderate portion of arable and pasture land, which is, however, inclosed and in good cultivation. -The Scottish system of agriculture, introduced hereby Mr. Thomas, of Sully House, who is regarded -as one of the best agriculturists in South Wales, is generally adopted in the parish, and has succeeded well. The living is a discharged rectory, rated in the king's books at £11. 9. 94., and in the patronage of Mrs. Thomas; present net income, £250. The church, dedicated to St. John the Baptist, is a neat edifice, kept in excellent repair; and adjoining it is a handsome parsonage-house. A school, containing about 15 children daily, and from 20 to 30 on Sundays, is supported by subscription; the mistress has a salary of £10 per annum, and a house rent-free; attached is a library furnished by the clergyman. Mr. John Howel, in 1775, bequeathed £10 to the poor not receiving parochial relief, but nothing is now known of this charity. The Rev. Mr. Conybeare, who has so greatly distinguished himself by his geological researches, was lately incumbent.