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vi as did non-appreciation that % values for bought-in solutions (notably ammonia) may be on a weight basis, not made evident by the manufacturer. Notwithstanding the shortcomings or lateness of some texts, authors are thanked for compiling them amidst other pressures. Elsevier and the American Chemical Society are also thanked, for Figures now reproduced with source acknowledgement. This Editor has generally respected authors' phrasing, whils...

Part of the "Naturetrail" series, this title opens young readers' eyes to the world around them. It features illustrations and photographs that explain how rocks, minerals and fossils are actually formed, what they can tell us about the history of the earth and its future, and where you can see and find them.