The collapse of this system may be attributed to the scarcity of labour brought about especially by the Black Death. When men could not be had in sufficient number, the necessary consequences was the expansion of pasture and the contraction of tillage; and this dual process was assisted by the stampede of labourers to the towns and the policy of enclosure to which landowners resorted as a remedy. Deprived of their quit-rents, and not having resources for the payment of wages on an adequate scale, supposing that labour was obtainable on reasonable terms, the landholders fell back upon the only expedients that remained to them. They had land, and they had stock; and, as an escape from absolute ruin, they let the land to tenants who took over the stock and, probably, as the need arose, replaced it with their own beasts. This revolution, already in full swing in the fourteenth century, paved the way for the present order of things, under which the tenant pays a fixed rent for the use of land and buildings, and finds the capital for farming. THE WASTE We have next to deal with the waste. The meaning of the term is clear--it signifies land which, from the poverty of the soil or other reasons, had never been brought under cultivation. The commons that still survive are mostly of that description, the more valuable land having been resumed during one of the successive periods of enclosure, or--piecemeal. Originally, there is little doubt, such land belonged to the family or sept, by whom it was used as forest for game or as pasturage for cattle. Unlike the arable field or the common meadow, it was not distributed into sets, but enjoyed in common by all who possessed the right of stocking it. In a genial article in the "Antiquary" describing how the world wagged in his parish of Blewbury, Berks, in the eighteenth century, the Rev. N. L. Whitchurch observes: "There were 'cow commons' on the downs in those days, and a road from the village is still called the 'cow way.' In the early morning a man would collect the various cows of the village, which he drove to pasture for the day. The ancient bell which he rang at the foot of the 'cow road' is still preserved in the village."