246 THE ESSEX NATURALIST. NOTICES BOOK NOTICE. Essex: An Outline Scientific Survey, with map and four plates. Colchester: Benham & Co. Ltd. 1926. 3s. net. This handbook, which was specially prepared for the Congress of the South-Eastern Union of Scientific Societies held at Colchester in June last, contains eleven articles on the Geology, Pre-history, Botany and Zoology of the County, written by varions members of the Essex Field Club and others, and is an attempt to focus the information now available in these several realms of nature, so far as our county is concerned. It offers a valuable and welcome epitome of the work accomplished in each department, and is consequently essential to students working in any of the various subjects described : moreover, no Essex book-collector, however non-scientific, can afford to pass over this important addition to the scientific literature of the county. SPECIAL NOTICE. Our Member, Mr. William E. Glegg, F.Z.S., M.B.O.U., is preparing for publication by the Club, as one of its "Special Memoirs," an up-to-date account of the Birds of the County, and will be grateful for any records or other information on the subject. Correspondence should be addressed to Mr. Glegg, at The House, Albion Brewery, Whitechapel Road, London, E.1.