REPTILES AND AMPHIBIANS IN EPPING FOREST 183 Adders were found, seven males, three females and one immature. Area B, where Adders were first found late in the summer, contained five, of which one was lying dead on a path, and one male and two females were identified. Area C is known to contain six females, eight males and one immature. Area D has six males, and five females. A single female found near a path near Baldwins Hill was removed to Area D. In 1958 therefore forty-three Adders were found in these four areas, and considering that the observers could only have found a proportion of those present, the total population must be quite considerable. Records from earlier years from areas which were either not searched in 1958, or when searched yielded nothing, are as follows; one seen at Lords Bushes ca. 1952, but not since; two in July 1953 near Monk Wood (D.S.); an area near Debden Green held one in 1957, but more have been reported (A.C.W.); and a single snake near Lippits Hill in 1956 (C.J.). The discovery of a known population of this size contrasts strikingly with published reports of the species. Fitter (1949), also quoted by Smith (1951) reported it as "very rare north of the Thames", and "in Epping Forest, where it was abundant at the turn of the century it has become very scarce, but was seen in Monk Wood in 1936-38 (W. Steel). Mr. A. Leutscher informs me that it still occurs in the drier parts of the Forest north of Loughton, and that he re-introduced it in some parts in 1947-48". Stubbs (1920) evidently regarded it as very rare in the Forest and wrote, ". . . I think, their entire extinction is but a few years distant". He recorded Adders near Theydon Bois in 1910, and "odd" specimens since that date, and himself saw two in 1919 near Oak Hill Farm (this seems to be the locality where one was seen in 1957), and another in 1919. It seems unlikely that the continued presence of this snake is entirely the result of re-introduction to the area, as it occurs in so many widely spaced areas, and in some abundance. Furthermore there is evidence over the years that Adders have been present since Stubbs wrote, (vide the record from Monk Wood in Fitter's paper, and our own notes from pre-war, of Adders in a clearing in Monk Wood, and on the Furze Ground and Broadstrood (J.D.), and on Baldwins Hill (G.M.)). The areas in which we have found this snake all lie within the northern part of the Forest. To some extent all have similar vegetational features. Open plains, with the grasses Deschampsia cespitosa and the purple moor grass (Molinia caerulea) in abundance, some rushes (Juncus sp.) and occasional heaths. There is usually a variable growth of birch, ranging from seedlings to thirty foot trees. One area (C) varies from the usual in that it contains a moderate growth of bramble and haw- thorn. It is difficult to reconcile these areas, which are usually sodden with rain water, summer and winter alike, with the drier parts of the Forest mentioned by other authors. Although we have not been able to search the open spaces south of High Beech exhaustively, we have made some attempt to do so, and on each occasion without success. The only two records of which we are aware from this area are given