Of the various theories which have been published as to the object of dene-holes three only are worth considering, namely, that they were granaries; that they were refuges; and that they were sunk in order to obtain chalk.

Subterranean granaries have of course been used in many countries;2428 but it is said that no grain has ever been found in any dene-hole,2429 whereas grain has been found in shallow pits and on numerous other prehistoric sites in Britain.2430 On the other hand, a thorough exploration of the famous group of dene-holes in Hangman’s Wood, Essex, revealed fragments of two millstones.2431 The Reverend E. H. Goddard remarks that ‘very similar places’ in Brittany were used by ‘the peasant armies during the war in La VendÉe’ as refuges and lairs, and argues that dene-holes served a similar purpose.2432 Perhaps, though it would have gone hard with the fugitives if their lairs had been discovered; but, seeing that strongholds were available, it is difficult to admit that they were dug with that object. The theory that they were shafts sunk for the extraction of chalk rests mainly upon the evidence of Pliny, who states that chalk was obtained in Britain for manure ‘by means of pits sunk like wells with narrow mouths to the depth commonly of one hundred feet, where they branch out like the veins of mines’ ([creta] petitur ex alto, in centenos actis plerumque puteis, ore angustis, intus ut in metallis spatiante vena2433). Messrs. T. V. Holmes and W. Cole, who superintended the exploration of the dene-holes in Hangman’s Wood, argue that ‘the above account could not have been given to Pliny by any man who had ever descended into one of our [Essex] ... dene-holes, which are entered by ... narrow shafts, but whose lofty symmetrical chambers cannot be described as “branching out like the veins of mines”.’2434 I think, on the contrary, that, allowing for the natural inaccuracy of a writer who gave his own version of information supplied by one who had perhaps himself not descended into a dene-hole, Pliny’s description was remarkably correct: the chambers which open out at the bottom of the shafts in Hangman’s Wood are arranged in the shape of a star-fish; the only material error with which Pliny can be charged is that he compared them to the veins of mines; and that he was alluding to them I have no doubt. Messrs. Holmes and Cole are, however, on firm ground when they point out that his informant may have wrongly assumed that the shafts were sunk in order to obtain chalk because the chalk that was extracted from them was utilized. ‘And,’ they continue, ‘a foreigner accidentally discovering secret pits—and our surface trenches showed our dene-holes to have been secret excavations—would almost necessarily be deceived as to their use by natives.’ But is it not possible that Pliny’s informant may have been a Briton? And, assuming that he was deceived as to the purpose of the dene-holes, why was he allowed to learn the existence and arrangement of the chambers, and, approximately, the depth of the shaft?

Nevertheless, Messrs. Holmes and Cole are undoubtedly right in the main. It has been argued that dene-holes are situated in places which must always have been uncultivated, whereas the tracts in which chalk lay near the surface may have been already occupied; that chalk has been obtained in Wiltshire in modern times by mining although it was to be had near the surface; and that the labour of sinking the shafts may have been compensated by saving the cost of transporting chalk from distant parts, where it was the surface rock.2435 But, as Messrs. Holmes and Cole observe, ‘there is plenty of bare chalk within a mile’ of Hangman’s Wood; and, as they pertinently ask, if the dene-holes were sunk for chalk, why was their position so carefully kept secret?2436 Again, Mr. Spurrell, who admits that where chalk lay very deep shafts may have been sunk merely in order to obtain it, remarks that ‘it is evident that where the land is white with chalk the pits of great depth so often found there could not have been dug for manure, and the natives of Kent in such situations scout the idea as absurd’.2437 Messrs. T. E. and R. H. Forster contend that the elaborate design of the chambers in Hangman’s Wood is ‘in reality a strong confirmation’ of the truth of ‘the chalk-quarry theory’; for ‘the star-fish-shaped pit ... enables the miner to win more chalk at one sinking; and if no examples of it were known, it would be necessary to postulate its existence in order to supply the missing link between the primitive bell-pit and the pillared and galleried mine of the kind seen at Chislehurst’.2438 But is the ‘bell-pit’ primitive, and is there a link, missing or otherwise? Anyhow it is incredible that the people of Essex, if they had undertaken the prodigious labour of sinking 70 shafts simply in order to obtain better chalk than what they could have found hard by at the surface, would have contented themselves, after boring through 60 feet of sand and gravel, with ‘the very uppermost [and therefore worst] chalk’.2439 As Mr. Holmes remarks,2440 ‘it must be obvious that the course which would commend itself to all seekers after superior chalk would be to begin operations where chalk is at the surface, make a shaft 10 to 20 feet deep, and procure chalk lying at that depth’; and, while he freely admits that ‘a farmer might naturally prefer to get chalk at a depth of 60 to 80 feet on his own land rather than ... from some one else’s pit a mile or two away’, he emphasizes the absurdity of supposing that ‘any people ... concentrated their pits where they got the least return for their labour, and where there was no counterbalancing advantage ... as they must have done at Hangman’s Wood and Bexley on the Chalk-pit hypothesis’.2441

Charred wood, bones of animals, and large quantities of coarse pottery have been found in a dene-hole near Dunstable,2442 which is sufficient evidence that some dene-holes were occasionally inhabited.

I conclude that dene-holes were intended to serve as granaries; that they may have been used occasionally as places of concealment; and that the chalk which was taken out of them was used, if it was wanted, for manure. It is significant that their name means ‘Dane-holes’, that is, hiding-places from the Danes.2443

The ‘bell-pits’ which have been already mentioned, and which are sometimes confounded with dene-holes, were undoubtedly made for the sake of the chalk; and, unlike dene-holes, they were made broad in order that a large amount of material might be taken out of them at each haul.2444

Some of the Kentish dene-holes, if Mr. Goddard is rightly informed, contained bronze implements;2445 and those of Essex are almost certainly post-neolithic.2446 Some bell-pits are ancient, but I doubt whether it could be proved that any were pre-Roman: Pitt-Rivers2447 indeed believed that it was from the Romans that the Britons learned to use chalk as top-dressing.