Parliament 427 meet so often, and annual Parliaments came nearer to being the rule in the long reign of Edward III. The sessions remained short; the knights and burgesses especially felt it a burden to be called from home, where they had im- portant concerns which these trips to Westminster badly disturbed. But as the political importance of Parliament grew and it was found that things could be done there of use to the representatives and their constituents as well as to the king, richer men were returned from both county and borough, and they were not in such a hurry to get home. Also the scheme of voting taxes for more than one year began to be used in the reign of Edward III.; and before the end of the fourteenth century, it was found that a Parliament might on occasion be prorogued instead of dissolved, thus making it unnecessary to have a new elec- tion for every new session. For these reasons, annually elected Parliaments ceased. Sovereigns never seem to have felt obliged to adhere strictly to the statutes requir- ing them, and in the fifteenth century these fourteenth- century statutes, though still unrepealed, were unheeded. The frequency of new Parliaments and the frequency and length of sessions came to be determined almost wholly by the circumstances and needs of the time. The power of the king to summon, prorogue, or dissolve Parliament at pleasure was unquestioned. Henry V., Henry VL, and Edward IV. were less dependent upon Parliament for money than were the earlier kings. Tunnage and pound- q