Christie's London will hold a Travel, Science & Natural History sale on 23 September. Many of the top lots are expected to be artwork, instruments and globes, but there are a few noteworthy books, including a rare three-volume book of photographs of Mecca, Christian Snouck Hurgronje's Mekka (The Hague: Martinus Nijhoff, 1888-89). That's estimated at £10,000-15,000.
A number of other illustrated natural history books, and a few maps and atlases will also be on offer.
