THE ESSEX FIELD CLUB. 227 Miss Lister exhibited a copy of the Particulars of Sale in 1870 of Upton House, the residence of the late Lord Lister, which included a Plan of the Estate and a fine tinted lithograph showing the garden front of the house. Miss Lister has kindly allowed photographs of this seemingly rare Essex "item" to be taken for the Club's Photographic Survey. Mr. Main exhibited, in an observation cage ("arenarium") of his own invention, living male and female specimens of the Giant Shore Earwig, Labidura riparia, which he had brought from the Mediterranean coast of France. Mr. Jane exhibited a nicely set specimen of the Convolvulus Hawk Moth which had been taken on a fence at Custom House. Mr. Scourfield exhibited, under a couple of microscopes, a specimen of the mycetozoan Badhamia utricularis, showing the streaming plasmodium; and also some further specimens of the sulphur-bacterium, Chromatium okeni, from a pond at Fairmead Bottom in Epping Forest. The Hon. Secretary exhibited two polished sections of trunks of Common Oak and of Turkey Oak from Romford: the donor, Mr. Walter Fox, kindly communicated the following notes on these sections and their origin:— ''The two sections now presented to the Club were cut from trees growing in Marshall's Park, Romford. The mansion is about 150 years old, and had a park of 60 acres surrounding it, covered by well grown trees, mostly elm; the soil being a very heavy clay the elms are to-day quite unfit for any purpose, quite 60 per cent. being rotten at the heart, and so several were felled for safety. Both Common Oak and Turkey Oak were very well grown and numerous and in sound condition. A moderate number of Sycamore, Lime, Hazel, Birch and Beech made up a very fine selection of trees for a small park of 60 acres. The whole of the timber has been sold, and very few trees still remain standing. 'The mansion and park were formerly in the ownership of Mrs. Macintosh of Havering. On her death, in 1924, the estate was sold for building purposes; the mansion was last occupied privately by Mrs. C. P. Matthews in 1896. During the years 1921-4 it was occupied as a recuperation hostel for shell-shocked soldiers. I have secured two views of the house, and these are presented, with the sections, to the Club. "The detailed measurements of the trees from which the two sections were cut are as follow:—The larger section, Quercus Robur L., bole of tree 40ft. in length and total height of tree some 60ft., the circumference at the butt being 8ft.; at 3ft. from the butt, at which point the section was cut, the circumference is 7ft. 6in. The smaller section, Turkey Oak, Quercus Cerris L., was cut from a tree of very fine proportions, in height 80ft., and the bole 50ft. The bole was of regular and even growth and circumference, at the butt being 5ft. 10in., at 20ft. 5ft. 4ms., and at 50ft. 4ft. 10in.; circumference of section 5ft. 11/2in., cut at about 20ft. from the butt. The trees from which these sections were taken were felled in October, 1924." Mr. Thompson also exhibited a small collection of fossil shells from the London Clay of Rayleigh, which had been collected and presented to the Stratford Museum by Mr. Arthur Wrigley. He further exhibited some specimens of Cyrena cuneiformis and C.