214 THE ESSEX FIELD CLUB. of the late Mr. Henry Doubleday's collections at Epping. On examination the slides appeared to have been made and labelled by the late Francis Walker, of the British Museum, as the localities given are mainly "South- gate," where Mr. Walker resided, and apparently in his handwriting. Mr. W. Cole made a few remarks on the subject and Mr. Sworder was thanked for the presentation. Nomination of Council and Officers.—In anticipation of the Annual Meeting, nominations were made of new members of Council and the officers. [See Report of Annual Meeting on 3rd May,] Lecture.—A lecture was then given by Mr. Fred. Enock, F.L.S., on "Fairy Flies and their Hosts." During the past thirty-five years, Mr. Enock has been engaged in studying closely the life histories of these "Fairy Flies"—a family of microscopic insects, some of them so small that five of them could walk abreast through an ordinary pin hole. The result of Mr. Enock's life work has been his discovery of at least one hundred and fifty species new to Great Britain, which will be described in the monograph on the British Mymaridae upon which he is now engaged. On the proposal of the President, a very cordial vote of thanks was accorded to Mr. Enock for his extremely interesting and original lecture. VISIT TO THE BRITISH MUSEUM OF NATURAL HISTORY. Saturday, 12th April 1913. The members were received by Dr. Arthur Smith Woodward, F.R.S. (Keeper of the Geological Department). In the galleries, Dr. Woodward gave a most instructive demonstration of some of the Fossil Reptiles and Fishes, and afterwards, in his private room, exhibited and described the Palaeolithic Human Skull and Mandible from a Flint-bearing Gravel over- lying the Wealden (Hastings Beds) at Piltdown, Fletching, Sussex. This skull had been described by Dr. Smith Woodward under the name Eoanthropus dawsoni in honour of Mr. Charles Dawson, who, with Dr.. Woodward, was the discoverer of the skull. The relic was regarded by Sir E. Ray Lankester and Dr. Keith as by far the most important human remains ever discovered in England. Dr. Woodward very fully des- scribed the skull by means of models and casts, and pointed out its extreme interests from an ethnological point of view. The reader is referred to the very detailed and finely illustrated paper on the subject by Mr. Dawson and Dr. Woodward in the Quarterly Journal of the Geological Society, Vol. lxix., pp. 117-151 (March 1913). A most hearty vote of thanks was passed to Dr. Woodward for his. kindness, and for his most interesting and instructive demonstration. VISIT TO GREAT WARLEY, BRENTWOOD (421st MEETING). Saturday, 20th April 1913. The object of this excursion was to visit again, by the kind invitation of our member, Miss E. Willmott, F.L.S., her beautiful gardens at Warley