CORPUS CHRISTI, a festival of the Church of Rome observed on the first Thursday after Trinity Sunday, in honour of the doctrine of the Eucharist. It was instituted by Pope Urban IV., in 1264, and is still celebrated as one of the greatest feasts of the church.

CORREA DA SERRA, Jos*. FRANCISCO (1750-1823), a Portuguese politician and man of science, was born at Serpa, in Alemtejo, in 1750. Having been educated at Rome, he took orders under the protection of the duke of Alafoes, uncle of Mary I. of Portugal. In 1777 he returned to Lisbon, where he resided with his patron, with whose assistance he founded the Portuguese Academy of Sciences. Of this institution he was named perpetual secretary, and he received the privilege of publishing its transactions without reference to any censor whatever. His use of this right brought him into conflict with the Holy Office ; and consequently in 1786 lie fled to France, and remained there till the death of Pedro III., when he again took up his residence with Alafoes. But having given a lodging in the palace to a French Girondist, lie was forced to flee to England, where he found a protector in Sir Joseph Banks, and became a member of the Royal Society. In 1797 he was appointed secretary to the Portuguese legation, but a qUarrel with the ambassador drove him once more to Paris (1802), and in that city he resided till 18132 when he crossed over to New York. In 1816 he was made Portuguese minister-plenipotentiary at Washington, and in 182D he was recalled home„ appointed a member of the Financial Council, and elected to a seat in the Cortes. Three years after, and in the same year with the fall of the constitutional Government, he died. Correa da Serra ranks high as a botanist, though he published no great special work. His principal claioi to renown is the Coleccdo cle Livros ineditos da IIistoria Portugueza, 4 vols. (1790-1816), an invaluable selection of documents, exceedingly well edited.