Acknowledgements We would like to offer our grateful thanks to the authors of the articles contained in this booklet, with special thanks to those contributors not directly involved with the Thurrock Natural History Society - Betty Goddard, Geoffrey Pyman, Colin Ranson and Roger Taylor. We are indebted to Gordon Stevens for his cover design and reproduction of the photographs. The photograph of Hog's Fennel was kindly supplied by John Weston - all others taken in Thurrock by Doug Frostick. Finally we would like to thank both our President, Hew Watt, for his support and advice over the years, and Brian Harrod for his early enthusiasm which resulted in the creation of the Thurrock Natural History Society. Doug Frostick Jerry Gooding Colin Studholme December 1980 4