240 CHARCOAL-BURNING IN ESSEX. that county, many having been dug up here and there at various times. And, as regards London, I am obliged to Mr. H. L. Kerdel, of the C.O.S. Office, Greenwich, who tells me that many tree- trunk pipes were unearthed in Bedford Street, Covent Garden, during the first week in November, 1903. Lastly, Mr. Whitaker informs me that, according to Dr. Mill, some wooden water- pipes were exposed in digging a trench along Dorset Street between Baker Street and Gloucester Place in 1903. CHARCOAL-BURNING IN ESSEX. By T. S. DYMOND, F.I.C, County Technical Laboratories, Chelmsford. [Read March 19th, 1904.] " At Thundersley, where there is much wood, part of the copse is cut at eleven or twelve years' growth into lengths of three feet for burning into charcoal. The burner is paid 20s. per 100 sacks, each of eight pecks ; he does not cover the heaps with turf or earth, but with rushes, fern, thistles, long grass, weeds, or stubble which the master finds, but if the burner gets them he has 2s. per hunched more. He burns two heaps a week the year round, five cords in a heap ; the master buys the wood at 14s. to 17s. the cord of twelve feet long, three-and-a- half high, and three broad. A team of five horses in a six-inch wheeled waggon comes every week from London and takes 200 sacks." General View of the Agriculture of Essex, by Arthur Young (1807), II., 147. The details of the process of charcoal-burning in Essex as described by Arthur Young nearly a century ago remain true to-day, but the magnitude of the industry has gradually declined until now, probably, not one-third of the charcoal is produced in the whole county that was formerly produced at Thundersley alone. The causes of this decline are various. The disappear- ance of hop-growing and drying as an Essex industry and of the cutlery manufacture at Thaxted, for both of which charcoal was used, and the replacement of gunpowder by more powerful explosives have greatly diminished the demand for charcoal and, therefore, the price obtained for it, while the stubbing of the woodlands in the great wheat years, and the depression of agriculture since, which has resulted in the cutting up of the larger farms and estates, and the diversion of Epping Forest (where charcoal was largely burnt) to the purpose of a pleasure resort have all tended to reduce the output. Yet, still, in the course of a ramble through the woods about