The importance of the part played by agriculture in the economic history of our country is sometimes apt to be forgotten, for its place has, during the past hundred years, been largely taken by manufacture. Down to the beginning of the nineteenth century the bulk of the population still made a living by tilling the fields, just as their fathers had done from time immemorial. It becomes, therefore, a matter of great interest to trace the beginnings and growth of agriculture in our country before the dawn of history.

Agriculture may be taken in its broadest sense to signify the artificial growth of plants for human use, as opposed to the gathering of wild products, but the term may also be narrowed down to cover only the cultivation of farinaceous seeds which we call cereals. It is chiefly in the latter sense that the subject will be discussed here, but it must be remembered that the nature of the evidence does not altogether allow of such a distinction.

The Scottish area is particularly rich in prehistoric remains, in some measure due to the fact that being a hilly and mountainous country large tracts of the surface have never been torn by the plough, nor suffered from the iconoclastic hand of the improver. Save for the effects of drainage, and some change in the character of vegetation arising from alteration of climate, much of the moorland country must have changed little in aspect since a remote past.

Among the various prehistoric structures in Scotland none is more remarkable than the broch. It does not occur out of Scotland, and neither its development nor period of occupation are generally understood.

The district with which we are concerned constitutes the northern section of Galilee between the Nahr-el-Kasmiyeh and the Merj Ayun to the north, and the plains of Haifa and Asochis (Sahel-el-Buttauf) and the Wadi Hammam to the south; to the east and west its boundaries are respectively the Jordan and the Mediterranean. The greater part of the region is occupied by a central limestone massif, the Galilean highlands, which rise in a series of terraces from the Jordan valley to a height of nearly 4000 feet above sea level, and then descend steeply to the Mediterranean coastal plain. Much of this country, especially on the western side of the watershed, is barren and uncultivable, but the high central plateau in the north from Yarun to Tibnin and the lower plateaux of Kades and Safsaf include some of the most productive corn-growing districts west of the Jordan. The beds of the larger valleys also, which even in summer are not entirely waterless, provide fertile garden land and are mostly highly cultivated. The more rocky parts of the region provide scant pasturage for flocks of goats, and in most places the olive is cultivated to a limited extent.

Since Plato announced that the course of history returned upon itself in 72,000 years, since Polybius discerned a “circular movement” by which the history of states came back, over and over again, to the same point, the theory of historical cycles has been a commonplace of European thought. Familiar to the thinkers of the Renaissance, it was modified by Vico in the early eighteenth century and again by Hegel in the early nineteenth; and a complete history of the idea would show many curious transformations and cover a long period of time. Here no attempt will be made to summarize this story; the subject of the present paper is the latest and, to ourselves, most striking exposition of the general theory, contained in Dr Oswald Spengler’s Decline of the West.

In the winter seasons of 1924-5, and 1925-6 the British School of Archaeology in Egypt granted me generous facilities to go to the Fayum and conduct, on its behalf, a preliminary inquiry into the question of the significance of the obscure prehistoric period known there since many years by the quantities of fine and varied flint implements reported, and picked up, on the desert surface of the northern area, by explorers and dealers.