416 The Period of Constitution iviaKing- law. The common petitions, after knights and burgesses were regularly in Parliament, would naturally arise there. Parliament was representative, it was often enough in session, it was fitted to express public sentiment, it could replace the irregular and revolutionary risings which had been the only means of voicing general grievances. These petitions were rather in the realm of public law, they were political.x The growth of the common petition was the natural result of the collection of knights and burgesses in a common gath- ering at Westminster and of the collective answer the crown required to its requests for money. Members from divers constituencies could hardly fail to fall into a habit of com- paring notes, possibly at first in informal conversation and afterwards in more regular ways, with respect to the peti- tions with which they were charged; and sooner or later they would be impressed by the extent to which these indi- vidual petitions had a common foundation in the normal behaviour or misbehaviour of the ministers of the king, judges, sheriffs, escheators and so forth. Before long it must have occurred to the shrewder among these early parliament- arians that it would be wise to pool their petitions and their powers of pressure upon the crown. It was an elementary form of union, for which the crown itself had paved the way by demanding common grants of aids and subsidies from the commons at Westminster instead of demanding them from individual "communitates" throughout the coun- try; ... * 1 While we thus see a qualitative as well as a quantitative difference between the individual and common petitions, this was hardly in mind at the time. " By no sharp line can the petitions of the assembled lords and commoners be marked off from the general mass of those petitions which are to be expedited in the parliament by the king and his council. At a somewhat later date the line will be drawn; the petitions of the assembled commons, the petitions of 'the community of the land,' will be enrolled along with the king's answers to them; petitions addressed to either of the two houses will be enrolled, if they have received the assent of both houses and of the king; but the ordinary petitions presented to the king and council by those who have grievances will not be enrolled, though as of old many of them will be answered in parliament by committees o* aud- itors."—Maitland, Introduction to Memoranda de Parliament, pp. Ixxiv.. Ixxv, * Pollard, Evolution of Parliament, pp. 118, 119.