(anc. geogr.), the largest river of Sarmatia Europea, thus described by Mela, who copies verbatim from Herodotus: "It runs through a cognominal people, is the most pleasant of all the rivers of Scythia, and calmer than all of them in its course, and very agreeable to drink: it feeds very rich pastures, and produces large fish of the best flavour, and without bones: it comes a great way, rising from springs unknown; its course is a distance of 40 days, and so far it is navigable." It is now called the Dnieper or Nieper. Borneo museum: for which, and other benefactions of the same kind, he received the thanks of the university; in a letter from the vice-chancellor, Nov. 18. 1758; and, March 1766, the degree of doctor of laws. He died in 1772, aged 77 years, leaving two sons out of six, whom he had by a lady he married in 1724. Besides his literary connections with many ingenious and learned men, he had a particular correspondence with Mr Pope; and there is still existing a large collection of letters written by that poet to Dr Borlase. He furnished Pope with many of the materials which formed his grotto at Twickenham, containing curious fossils; and there may at present be seen Dr Borlase's name in capitals, composed of crystalline, in the grotto. On which occasion Pope says to Borlase in a letter, "I am much obliged to you for your valuable collection of Cornish diamonds: I have placed them, where they may best represent yourself, in a shade, but shining;" alluding to the obscurity of the doctor's situation, and the brilliancy of his talents. Besides the above works, he sent many curious papers to the Philosophical Transactions, and had in contemplation several other works.