Catalogue of the First [-fourth and Concluding] Portion of the Collection of Books Formed by William Pickering, which Will be Sold by Auction by S. Leigh Sotheby & John Wilkinson, on the 20th-[25th] of Mar. 1854, [7th-18th of Aug. 1854, 30th of Oct.-8 Nov. 1854 and 11th-13th of Jan. 1855].