55 X. Report on the excavation of the Earthwork known as Ambresbury Banks, Epping Forest. By Major-General A. Pitt-Rivers, F.E.S., President of the Anthropological Institute. [Read at the Chelmsford Meeting of the Club, August 13th, and at the York Meeting of the British Association, September 5th, 1881.] Plates III., IV., and V. Epping Forest contains two camps about two miles apart, concerning which there are some local traditions. These camps owe their preservation to the fact of this region having been always forest and not cultivated ground; and this is a point worth noting on the part of those who are inclined to lay stress on the value of tradition as evidence of time and place. It is certain that neither Caesar nor Boadicea, nor any of the heroes and heroines of olden times, to whom these things are ascribed, had any special eye for locating themselves in places which might not in after years be destroyed by the plough; yet tradition concerning these people hangs naturally about such places as remain to us from ancient times, rather than about those innumerable spots in our long and highly cultivated country in which ancient monuments have been destroyed by agriculture. If anyone desires by practical experience to test the value of transmitted evidence, let him in the first place sit down, as I have done, to write a paper on Ambresbury Banks from materials derived almost exclusively from the notes of other gentlemen whose knowledge of the matter is greater than his own, and who having diligently watched the excavations made there, whilst he was otherwise engaged in London or elsewhere, have been good enough to supply him with all he has to base his paper upon. Let him observe how easy it