ON TREE-TRUNK WATER-PIPES. 63 following details about them. Tree-trunk pipes were used by the Kent Water Company about 100 years ago in Deptford and Greenwich, when the pumps were worked by a water-wheel at Mill Lane, Deptford. The water was supplied at a low pressure on the ground floors of the houses. Mr. Morris adds that old wooden pipes have been dug up when excavations have been made for sewers, or for new water-mains, in High Street and other parts of old Deptford, also in London Street, Stockwell Street and Church Street, Greenwich. He distinctly remembers seeing old wooden pipes in the pipe yard at the Kent Water Works, Deptford, when he was a boy; and remarks that the Kent Wate Company sent several wooden water pipes to the "Healtheries" Exhibition at South Kensington a few years ago. Mr. Cole also reminded me that another member of the Essex Field Club, Mr. J. M. Wood, C. E., of the New River Company, might know something of these tree-trunk pipes. On writing to Mr. Wood about them he kindly invited me to visit the Office of the New River Company—the oldest of the London Water Companies—and he there showed me some of the old wooden pipes, together with many other objects of interest in connection with the water-supply of London. The pipes seen were all of elm; and Mr. Wood pointed out a kind of iron band which had been driven into the pipes at the non-tapering end, between the outer bark and the inner channel, to make the joints fit the more tightly. He stated that wooden pipes were in use by the London Water Companies till 1808 or 1809, when iron pipes were introduced. As regards the New River Company's store of wooden pipes a century ago, the following details will be of interest. In Old and New London, vol. 2, p. 303, are these remarks on a part of the Clerkenwell District:— " The Ducking-Pond Fields, Clerkenwell Fields, Spa Fields, and Pipe Fields, were one and the same place under different names. The oldest of these names was the first, which applied especially to the district surrounding Spa Fields Chapel, and extending to the northward. The Pipe Fields were so called from the wooden pipes (merely elm trees perforated) of the New River Company, mentioned by Britton about the close of last [18th] century." Britton remarks in his Autobiography3 that Clerkenwell, when he first knew it in 1787, was very different from what it was in 1850. At the earlier date:— " Spa Fields, from the south end of Rosoman Street to Pentonville, from St. 3 Quoted in Wheatley's London Past and Present, vol. I. (Clerkenwell.)