This selection of essays, book-reviews, broadcast talks and papers delivered to learned societies reflects the extraordinary breadth of Arthur Koestler's interests. From the trial of Galileo to the pleasures of canoeing down the Loire, from a detailed examination of the 'memory' of flatworms to an equally detailed examination of the futility of quarantining dogs, the author writes about a vast range of subjects which occupied his attention in the twelve years (1955-1967) covered by this collection.

Those were the years that saw, among many other works, the publication of his great...