290 THE ESSEX NATURALIST. Birds, played on gramophone records, each record being prefaced by an explanation of the various songsters included on it, the whole arranged by the Honorary Secretary. Twenty-three members attended. ORDINARY MEETING (850th Meeting). SATURDAY, 24th FEBRUARY, 1945. This meeting, held at 2 o'clock on the above afternoon, at "Brooklands," Churchfields, Woodford, was attended by nearly 30 members. In the absence through indisposition of the President, Miss G. Lister was unanimously voted to the chair. On behalf of the Council of the Club, and in anticipation of the annual meeting to be held in March, the Hon. Secretary nominated Dr. Frank W. Jane, Ph.D., D.Sc., F.L.S., to fill the vacancy then to be caused by the retirement, at his own request, of Mr. S. Hazzledine Warren, F.G.S., as President : Miss Greaves seconded the nomination. Mr. Pratt exhibited some excellent large-scale photographs of Nightingales and Whitethroats on their nests, taken by himself from a hide in the Wanstead Sewage Works in 1940. Mr. Ross showed specimens of Didymium laxifida and D. trachysporum, two rare mycetozoans from Epping Forest. He also gave a report on the occurrence of the nycetozoa in the Forest in 1944, totalling 64 species, seen by him during the year. Mr. Thompson showed a cluster of sporangia of another mycetozoan, Didymium squamulosum, on leaves on a damp ditchbank at Loughton. Miss Lister exhibited and read extracts from a recent memoir on the late Sir David Prain, a former esteemed president of the Club. The Curator showed a young plant of the rare aquatic, Damasonium stellatum, from a South Herts, locality, the first record of this plant from that county for some 85 years. He also exhibited an Iron Stirrup, found in 1935 during alterations in the foundation of the Northern Outfall Sewer in High Street, Stratford : the specimen had been identified by the London Museum authorities as "quite definitely" of the Viking period (10th century a.d.). It is tempting to suggest that this stirrup may be a relic of the defeat of the invader in a.d. 895 when we read that a large body of Vikings pushed up the River Lea as far as Ware, where they formed a camp ; but King Alfred the Great diverted the Lea in such a way as to leave the Danish vessels high and dry, so that the entire fleet was captured. He also showed a specimen of micaceous sandstone exhibiting depressions of rainprints, and explained the manner of their formation. Mr. Thompson further exhibited a couple of quartzite knives made and used by the Arunta tribe of Central Australia, a people who, until their modern contact with Europeans, were still in a Neolithic stage of culture, not acquainted with the use of metals : the knives shown were hafted by means of gum and were provided with bark and string sheaths for safe handling. Mr. Reynolds exhibited a gold coin of the Emperor Valentinian, found in his garden in excellent preservation. Mr. Thompson read a paper on "The River-Walls of Essex," which he illustrated by various photographs, etc., from the Museum Pictorial Survey Collection : an interesting discussion ensued, in which Messrs. Mathieson, Ward and others joined. ANNUAL MEETING (851st Meeting). SATURDAY, 31ST MARCH, 1945. This meeting was held at "Brooklands,"' 37, Churchfields, Woodford, at 2 o'clock on the above afternoon. A regrettable oversight in fixing the date six