First published in 1979, The Tidal Thames discusses the history of Thames and the changes brought about by the expansion of London. It presents the results of Mr Wheeler’s research into the return of fishes to the Thames from 1957.The author’s involvement with the survey of fishes between 1967 and 1973 coincided with the great clean-up of the Thames and the survey monitored the return of the fishes in numbers to the heart of London. The book provides to the readers for the first time a systematic and comprehensive account of the natural history of the fishes of the Thames and gives a unique and valuable account of the ‘reclamation’ of this great river.