A file of correspondence, deposited in Liverpool City Libraries, England by the present Earl of Derby includes three letters from John Gilbert to John Gould; the existence of two of these has not previously been recorded. They consist mainly of descriptions of the Australian fauna of the 1840's and include the first notes on the Noisy Scrub-bird, Atrichornis clamosus (Gould), and the Paradise Parrot, Psephotus pulcherrimus (Gould), derived from specimens which would later become the types of the species. Some corrections are provided to Wagstaffe and Rutherford's (1 955) transcription of the third letter, which describes the mammal fauna of Western Australia and some include the Pig-footed Bandicoot, Chaeropus ecaudatus. A resume of the life of John Gilbert is included, with new information on his family background in England.

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