The size and construction of the Scamridge Dykes vary from a series of eight or ten parallel ditches and mounds deep enough and high enough to completely hide a man on horseback, to a single ditch and mound barely a foot above and below the ground level. The positions of the Dykes can be seen on the sketch map accompanying this book, but neither an examination of the map nor of the entrenchments themselves gives much clue as to their purpose. They do not keep always to the hill-tops and in places they appear to run into the valleys at right angles to the chief line. Overlooking Troutsdale, to the east of Scamridge farm, where the ground is covered with heather the excavations seem to have retained their original size, for at that point the parallel lines of entrenchments are deepest and most numerous. In various places the farmers have levelled cart tracks across the obstructions and in others they have been almost obliterated by ploughing, but as a rule, where cultivation touches them, the trenches have come to be boundaries for the fields.
The Neolithic people were only beginning to emerge from a state of absolute savagery, and it is possible that even at this time they were still cannibals. The evidence in support of this theory has been obtained from the condition of the bones found in long barrows, for, in many instances, they are discovered in such a dislocated and broken state, that there can be little doubt that the flesh was removed before burial. The long barrow at Scamridge is a good example of this, for the remains of at least fourteen bodies were laid in no order but with the component bones broken, scattered, and lying in the most confused manner. Half a jaw was lying on part of a thigh-bone and a piece of a skull among the bones of a foot, while other parts of what appeared to belong to the same skull were found some distance apart. Canon Greenwell, who describes this barrow with great detail, also mentions that this disarrangement was not due to any disturbance of the barrow after its erection, but, on the contrary, there were most certain indications that the bones had been originally deposited exactly as they were found. He also points out that this condition of things is obviously inconsistent with the idea that the bodies had been buried with the flesh still upon them, and goes on to say that “it appeared to Dr Thurnam that there were in these broken and scattered fragments of skulls and disconnected bones the relics of barbarous feasts, held at the time of the interment, when slaves, captives, or even wives were slain and eaten.” But although this argument appeared to Canon Greenwell to have some weight, he is inclined to think that the broken condition of the bones may have been due to the pressure of the mound above them after they had been partially burnt with the fires which were lit at one end of the barrow and so arranged that the heat was drawn through the interior.