A catalogue of part of the valubale library of His Grace the Duke of Newcastle, chancellor of the University of Cambridge, &c. &c. deceased; Which will begin to be sold, on Monday, May 1st, 1769, for ready money (the lowest price printed to each article) and continue on sale till the end of July next, by James Robson, bookseller to the Princess Dowager of Wales, in New Bond Street. Who gives most money for any library or parcel of books, prints, or manuscripts. Catalogues to be, gratis, at the following booksllers, Mr. Dosley, Pall-mall; Mr. Blamire, corner of Cravenstreet, Strand; Mr. Cater, in Holobourn; Mr. Law, Ave-Mary-Lane; and Messrs. Richardson and Urquhart, Royal -Exchange; also, Messrs. Merrill, and Woodyer, at Cambridge; and Messrs. Prince, and Fletcher, at Oxford.