228 MINERAL WATERS AND MEDICINAL SPRINGS OF ESSEX. London Clay, lying on the south side of the main road. It lay due south from Forest House, about three hundred yards from the road, and not very much further from the new Grange Hill Station of the Great Eastern Railway. A Mr. College, who has lived many years in the parish (in which he was born), stated that he could remember the well as a hollow place, bricked round, with steps leading down to the. water. The surplus water was conveyed through pipes into an adjacent ditch. The well was, however, drained, filled up, and turfed over about thirty years ago by a Mr. Radley, acting on behalf of the then- owner, a Mr. Fowell, and there is now nothing to indicate its exact site. The windmill mentioned by Morant was struck by lightning and burned down about fifty years ago, and the trees he men- tions as surrounding the well (part of old Hainault Forest) were probably cut down even earlier. About fifty yards from the reputed site of the well, there is a small stagnant field-pond for the use of the cattle of an adjacent farm—probably the "hole or hollow place" mentioned by Morant. The former fame of the well is, however, not forgotten locally. The Mr. College mentioned above spoke of it as "The Purging Well," and another resident interviewed knew it by the same name. Mr. College mentioned a Dr. Reeve, formerly of Chigwell Row, who, he said, had declared the water of the well to be "as good as any medicine" as a purgative. Mr. Dalton points out that, around the site of the well, the London Clay is not much short of its full thickness (about 400ft.), so the water may be attributed to some of the sandy beds which mark its gradual passage into the Bagshot sands. (13).—The Havering Spring.—Morant, after describing the spring at Chigwell Row, noticed above, continues114 :— " In Havering Liberty, there is also another Purging Water, in a well near Bone (or, rather, Bourne) Bridge, under which runs a small stream of common water." No other writer, so far as we know, alludes to this well, but the fact of its having been regarded formerly as a medicinal well is still remembered locally. A woman living in a cottage close to Bourne Bridge was able at once to direct Mr. Christy to 114 Hist. of Essex, i., p. 164 (1768). The "Gentleman" (Hist. of Essex, iv., p. 3n.: 1770) merely follows Morant.