Although timber has never been a main product, the records show an adequate succession of generations of oak: the saplings of 1604, for instance, became the timber trees of 1783. In two places we can compare an ancient description with the present plant communities. Hainault Forest, to judge by its surviving fragments, has changed remarkably little in vegetation since the 1544 survey; the principal trees are the same, though there is now rather less blackthorn and oak, and more hornbeam and birch, and there is now some holly which is not listed in 1544. Monk Wood has changed rather more since the account of it in 1582, and has become much less varied. Six of the seven trees then recorded are still there, but beech has become the sole dominant; holly has also increased; oak has greatly declined; and crabapple, then abundant, is now rare or extinct. These changes appear to result chiefly from relatively recent lack of pollarding, which has allowed beech to suppress the other species, especially the oaks whose dead remains are still to be seen. The 1582 record of crabtrees and hawthorns "most parte dead in the toppe' suggests that even 15 years between pollardings was enough to start the process of suppression. In Epping Forest in general the surviving old trees suggest that beech was dominant on high ground and hornbeam on the lower slopes. Oaks occurred in both zones but predominated in a narrow belt between them; they were also the chief scattered trees in the plains. Under pollarding the three trees would coexist without undue competition, but after pollarding has ceased both beech and hornbeam have overtopped, shaded, and killed many of the oaks among them; beech has tended also to overrun the oak zone and to move down into the hornbeam zone. The long-term changes in the trees of Epping have their parallels in other Forests. The New Forest and the Foret de Fontainebleau both tell of a change from lime to oak to beech. Lime declined in antiquity, as at Epping, and is commemorated by the place-names Lyndhurst (= lime-grove) and La Tillaie. The increase of beech over oak is more recent (54); at Fontainebleau, as at Epping, this second change is associated with the decline of the Forest land-uses (40). EVENTS SINCE 1878 The Epping Forest Act (1) abolished the rights of the Crown and the landowners and transferred the freehold of the Forest to the City of London, who were to appoint Conservators to manage it as a public open space. The Conservators were given, and promptly exercised, the power to terminate the woodcutting rights, although these had been a means of frustrating the destruction of the Forest; the common rights of grazing, illogically, were allowed to remain. The Act required the Conservators "as far as possible" to "preserve the natural aspect of the Forest" and (unconditionally) to "protect the timber and other trees, pollards, shrubs, underwood, heather, gorse, turf, and herbage growing on the Forest". 52