THE ESSEX FIELD CLUB. 247 Mr. C. Nicholson exhibited some "fruits" of a species of Oat, Avena sterilis, a South European plant, possessing hydroscopic awns which assist in the self-burying of the fruit, and so propagate the plant ; and he demon- strated the creeping and burying properties of the fruits. Mr. Christy referred to some North American grasses, of the genus Stipa, which had similar propensities, but on an exaggerated scale, their awned fruits some- times becoming entangled in the wool of sheep, and killing the animal by boring into its body. Mr. D. J. Scourfield exhibited living specimens of a minute Copepod) which he had obtained in June 1910, from water accumulated in a little hollow in a tree (in the angle between the trunk and a large partly exposed root) near the King's Oak in Epping Forest. He had previously found the same form in a similar position near Theydon Bois in 1904. It was apparently an undescribed species of Moraria, but, owing to the scattered state of the literature dealing with fresh-water Copepods, it was not possible to state definitely whether it was really new or not. In any case, it was a new species to Britain. A very remarkable thing about it was its extreme tenacity of life. The little tube exhibited (about 3 inches long and 1 inch diameter) had had nothing whatever added to it except clean water from time to time, and yet the animals had been able to live, and apparently even to increase in it, for nine months, their nourishment being obtained, one must suppose, from the small quantity of very innutritious-looking sediment originally taken with the collection, But more striking still was the previous case when living specimens were found in a tube kept in the same way for more than four years, viz. : from May 1904 to October 1908. By means of a sketch on the blackboard, Mr. Scourfield explained some of the principal features of the organisation of the species, calling particular attention to the anal plate, which was marked by a series of shallow radiating wavy folds and a faintly crenulated edge, a type of plate not previously seen in any species of the genus. The name of the genus, Moraria, was derived from Loch Morar, in the west of Scotland, where the first known species were found by Dr. T. Scott. Mr. W. Cole exhibited the collection of Epping Forest Lichens presented to the Museum by Messrs. Paulson and Thompson last year, and which had now been suitably mounted in glass-topped boxes. The specimens were illustrative of the donors' paper in the Essex Naturalist (ante pp. 136-45). Also, samples of the Club's Herbarium of British Flowering-Plants, which had been collated and arranged by the Rev. A. C. Morris, B.A., and Mr. Henry Whitehead, B.Sc. He read a report on the Herbarium by Mr. Morris, which will be embodied in a "Museum Note" in the Essex Naturalist. A very cordial vote of thanks was passed to the Rev. A. C. Morris, for his long-continued labours in arranging the Herbarium. Mr. Cole also exhibited a Bill-hook which had been used for at least 100 years as a tool in asserting the lopping rights on the Forest at Loughton on the 11th day of November in each year. The hook was formerly owned by Robert Higgins, of Baldwin's Hill, Loughton, uncle to Thomas Willingale ; later it came into the possession of Thomas Willingale, and from him descended to Samuel Willingale, who had now presented it to