Co-author Andrew J Berger. A substantial work, 771 pages plus index. Illustrated with maps, diagrams and photographs. Condition: Dust jacket soiled and worn. Boards a little rubbed, faint spotting, and with a hint of warping to the top board. Unsightly dust soiling to fore edges of text block. Pages clean and unmarked. An acceptable working copy. Bookplate of Jeffery Boswall (naturalist and BBC broadcaster) to front pastedown.