Vol. 28, Part 3 March 1949 THE ESSEX NATURALIST being the Journal of the ESSEX FIELD CLUB Editor : C. BIGNELL PRATT CONTENTS PAGE The Living Tree. By Frank W. Jane, PH.D., d.sc, f.l.s. ... ... 103 Anting by Birds. By W. E. Glegg, f.z.s., M.B.O.U....... 119 Three Essex Dightons. By C. Hall Crouch, F.S.G. With three plates ............... ............ 123 Exotic Trees in Great Britain. By Frank W. Jane, PH.D., d.sc. ... 126 Mycetozoa in Epping Forest in 1947-48. By Joseph Ross ... 134 Preliminary Notes on a New Fungus Disease of Sycamore. By S. Waller............... ............ 136 The Larger Wintergreen in Essex. By Gulielma Lister, f.l.s....... 138 Notes and Observations ............ ... ...... 138 The Essex Museum...... ... ... ... ...... 143 The Epping Forest Museum .................. 143 The Library...... ... ... ... ...... ... 144 Obituary Notices : Baron Noel-Buxton, Hugh Main, J. H. Richter ... 146 The Essex Field Club : Reports of Meetings............ 147 Published by The Essex Field Club at the Essex Museum of Natural History, Romford Road, Stratford, London, E.15.