A catalogue of several libraries and parcels of books lately purchased; containing A very Large and Valuable Collection, In all Languages, Arts, and Sciences, Which will be sold very reasonable, the lowest Price printed in the Catalogue, By Leigh and Sotheby, booksellers, At their House, in York-Street, Covent-Garden. Beginning June, 1788, and continue till all are sold. Catalogues to be had of the following Booksellers; Mr. Beckett, Pall Mall; Mr. Robson, Bond Street; Mr. Walter, Charing Cross; Mr. Owen, Temple Bar; Mr. Sewel's, Cornhill; and at the Place of Sale. - Where is given the full Value for Libraries and Parcels of Books