person or by proxy to perform his week-work of three days, or two days, or four days, according to the case, and that it is not settled beforehand what kind of work he is to perform. He may have to plough, or to carry, or to dig trenches, or to do anything else, according to the bidding of the steward. A similar instance of uncertainty may be found in the expression 'without measure[663]' which sometimes occurs in extents. It would be preposterous to construe it as an indication of work to be imposed at pleasure. It is merely a phrase used to suit the case when the work had to be done by the day and not by a set quantity; if, for instance, a man had to plough so many times and the number of acres to be ploughed was not specified. It is true that such vague descriptions are mostly found in older surveys, but the inference to be drawn from the fact is simply that manorial customs were developing gradually from rather indefinite rules to a minute settlement of details. There is no difference in the main principle, that the dependent householder was not to be treated as a slave and had a customary right to devote part of his time to the management of his own affairs. [The holdings and the population.] Another point is to be kept well in view. The whole arrangement of a manorial survey is constructed with the holding as its basis. The names of virgaters and cotters are certainly mentioned for the sake of clearness, but it would be wrong to consider the duties ascribed to them as aiming at the person. John Newman may be said to hold a virgate, to join with his plough-oxen in the tillage of twenty acres, to attend at three boon-days in harvest time, and so forth. It would be misleading to take these statements very literally and to infer that John Newman was alone to use the virgate and to work for it. He was most probably married, and possibly had grown-up sons to help him; very likely a brother was there also, and even servants, poor houseless men from the same village or from abroad. Every householder has a more or less considerable following (_sequela_)[664], and it was by no means necessary for the head of the family to perform all manorial work in his own person. He had to appear or to send one workman on most occasions and to come with all his people on a few days--the boon-days namely. The description of the _precariae_ is generally the only occasion when the extents take this into account, namely, that there was a considerable population in the village besides those tenants who were mentioned by name[665]. I need not point out, that the fact has an important meaning. The medieval system, in so far as it rested on the distribution of holdings, was in many respects more advantageous to the tenantry than to the lord. It was superficial in a sense, and from the point of view of the lord did not lead to a satisfactory result; he did not get the utmost that was possible from his subordinates. The factor of population