Germany are planned on a basis entirely different from that of his predecessors. Instead of proceeding from the whole to the parts, and of using social facts merely as a background to political history, he concentrates everything round the analysis of the Mark, as the elementary organisation for purposes of husbandry and ownership. The Mark is thus taken up not in the vague sense and manner in which it was treated by Kemble and his followers; it is described and explained on the strength of copious, though not very well sifted, evidence. On the other hand, Hanssen's masterly essays[25] on agrarian questions, and especially on the field-systems, gave an example of the way in which work was to be done as to facts of husbandry proper. [Nasse.] Nasse's pamphlet on the village community[26] may be considered as the first application of the new methods and new results to English history. The importance of his little volume cannot easily be overrated: all subsequent work has had to start from its conclusions. Nasse's picture of the ancient English agricultural system, though drawn from scanty sources, is a very definite one. Most of the land is enclosed only during the latter part of the year, and during the rest of the year remains in the hands of the community. Temporary enclosures rise upon the ploughed field while the crop is growing; their object, however, is not to divide the land between neighbours but to protect the crop against pasturing animals; the strips of the several members of the township lie intermixed, and their cultivation is not left to the views and interests of the owners, but settled by the community according to a general plan. The meadows are also divided into strips, but these change hands in a certain rotation determined by lot or otherwise. The pasture ground remains in the possession of the whole community. The notion of private property, therefore, can be applied in this system only to the houses and closes immediately adjoining them.