ZOOLOGY - Haeckel, Ernst - Thomson, Wyville and John Murray (eds.). Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-76. Zoology - Vol. IV and XVIII. With 32 and 140 lithogr. plates respectively by E. Giltsch after E. Haeckel and A. Giltsch and multiple folded map by Malby& Sons. London, Longmans& Co, 1882 and Eyre & Spottiswoode, 1887. 4°. Slightly differently bound cloth d. Z. with gilt spine title (slightly rubbed, faintly bumped and scratched; inner joint of v. chipped) = "Part XII. - Report on the deep-sea medusae" and plate volume of the "Radiolaria". - Lightly browned, Volume XVIII somewhat foxed.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.