REPORTS OF MEETINGS 221 water table on the development of the district and then gave reasons for the concentration of the objectionable trades connected with the slaughtering of cattle for London which many years ago had grown up hereabouts. He went on to speak of the waterways and the water mills connected therewith and mentioned that three of the latter still existed. Production of timber for reconstruction after the Great Fire of London became a major industry and there was then a gap until the introduction of steam power led to the construction of the great docks with their attendant trades and in- dustries. Mr. Driscoll then answered questions by members on the subject of his lecture and the meeting closed with a hearty vote of thanks to the lecturer for his most interesting talk. Ordinary Meeting (898th Meeting) SATURDAY, FEBRUARY 26TH, 1949 This meeting was held at West Ham Municipal College at 3 p.m. with the President, Dr. Frank W. Jane, in the chair. Forty-six members and visitors attended. Two nominations for membership were read and the following three persons were elected to membership of the Club : Miss Elsa J. Hilbert, of 106, Wellesley Road, Ilford. Miss Margaret Wickson (junior member), of 33, Castle Drive, Ilford. Mr. W. P. Seabrook, of "St. Barnabas," Frinton-on-Sea, Essex. The Honorary Secretary then announced that the Council nominated the following for election as officers and members of Council for the year 1949-50. President : Mr. Laurence S. Harley. Hon. Treasurer : Mr. F. C. Wickson. Joint Hon. Secretaries : Mr. W. J. Foster and Mr. B. T. Ward. Hon. Curator (West Ham Museum) : Mr. E. E. Syms. Hon. Curator (Epping Forest Museum) : Mr. B. T. Ward. Joint Hon. Excursions Secretaries : Mr. and Mrs. Richard Ward. Hon Editor : Mr. C. Bignell Pratt. Members of Council : Miss A. M. Dofort, Miss E. M. Jones, Dr. R. Coles, Dr. R. Curnock, Mr. E. Hensler, Mr. W. Howard, Mr. J. Ross, Mr. S. Waller and Mr. P. Thompson. The President reminded members that it was open to any member to make further nominations and that there were further vacancies for Members of Council. Mr. Harley showed a section cut from a stem of cherry which had been constricted by a strong encircling growth of ivy. This served as a warning of the damage which could be caused to a tree in this way, for the cherry had been so weakened as to be snapped off. Mr. Ross showed a specimen of Didymium trachysporum, a species of Mycetozoa which had been described, figured and named as a new species in 1922 by Miss G. Lister in the Essex Naturalist, Vol. xx, p. 113. He also showed specimens of Didymium squamulosum and D. spumarioides for com- parison. Miss Greaves showed, from the Pictorial Survey Collection, a number of views of Colchester of particular interest to those members who intended to join in the Club's forthcoming visit to that city. Mr. Alfred Leutscher of the British Museum (Natural History) then gave a lecture on The Reptiles and Amphibia of the British Isles. Having given his reasons for specialising in these animals, he touched upon their derivation from the fishes of the Devonian period and the amphibians of the