These observations lead at once to important questions; how was the farm-assessment distributed in every single manor, and what was its influence on the duties of the single householder? It seems hardly doubtful, to begin with, that the food-rent changed very much in this respect. Originally, when the condition of things was more or less like the Osulvestone example, the farm must have been the result of co-operation on the part of all the householders of a township, who had to contribute according to their means to furnish the necessary articles. But the farm of St. Paul's, London, even when it is paid in produce, is a very different thing: it is the result of a convention with the firmarius, or may be with the township itself in the place of a firmarius[671]. It depends only indirectly on the services and payments of the peasantry. Part of the flour, bread, beer, etc., may come from the cultivation of the demesne lands; another portion will appear as the proceed of week-work and boon-work performed by the villains, and only one portion, perhaps a very insignificant one, will be levied directly as produce. In this way there is no break between the food-rent system and the labour-system. One may still exist for purposes of a general assessment when the other has already taken hold of the internal arrangement of the manor. [Labour-service system.] Most of our documents present the labour arrangement in full operation. Each manor may be regarded as an organised group of households in which the central body represented by the lord's farm has succeeded in subordinating several smaller bodies to its directing influence. Every satellite has a movement of its own, is revolving round its own centre, and at the same time it is attracted to turn round the chief planet, and is carried away in its path. The constellation is a very peculiar one and most significant for the course of medieval history. Regarded from the economic standpoint it is neither a system of great farming nor one of small farming, but a compound of both. The estate of the lord is in a sense managed on a great scale, but the management is bound up with a supply and a distribution of labour which depend on the conditions of the small tributary households. It would be impossible now-a-days to say for certain how much of the customary order of week-work and boon-work was derived from a calculation of the requirements of the manorial administration, and how much of it is to be regarded as a percentage taken from the profits of each individual tenant[672]. Both elements probably co-operated to produce the result: the operations performed for the benefit of the lord were ordered in a certain way partly because so many acres had to be tilled, so much hay and corn had to be reaped on the lord's estate; and partly because the peasant virgaters or cotters were known to work for themselves in a certain manner and considered capable of yielding so much as a percentage of their working power. But