On one point, no doubt because it involved a question of prerogative rather than law, the new Act was silent; and yet it was a point of high importance and, as it afterwards became the subject of legal enactment, this may be a convenient time to mention it. We refer to the privilege conceded to certain persons to send and receive their letters free of postage, or, to use the term by which it was commonly known, the franking system. The persons who enjoyed this privilege were the Chief Officers of State and the members of the two Houses of Parliament. The Chief Officers of State, or ministers as they had now begun to be called, were entitled to send and receive their letters free at all times and without limit in point of weight. The members of the two Houses were so entitled only during the session of Parliament and for forty days before and after, and in their case the weight was limited to two ounces. The privilege had already been greatly abused. Secretaries of State would not scruple to send under their frank the letters of their friends and their friends' friends as well as their own. In 1695 Blaithwaite, who was then Secretary of War, carried the practice to such an extent as to evoke from the postmasters-general a vigorous remonstrance. "We cannot deny," they said, "but this has been too much a practice in all tymes, and we are sure you will not blame us for wishing itt were amended, being soe very prejudicial to His Majestye's revenue under our management." The practice extended, and in 1705 a warrant under the sign-manual, after enumerating afresh the Officers of State who were entitled to frank, expressly charged them not "to cover any man's letters whatsoever other than their own," and, as regards any letters which might come addressed to their care for private persons, to send them to the Post Office to be taxed and delivered.