This abuse, taken together with the illicit traffic in letters, so openly and widely carried on, formed of course a most important argument in favour of the proposals for cheap postage formulated by Rowland Hill, and no doubt did much to damage the cause of his opponents. But there is one other abuse to which Londoners were subject which may just be mentioned. At that time the Twopenny Post was in operation in the English metropolis, and would have fairly served the inhabitants in postal matters if it had not been for the practice which existed of allowing commercial houses and other firms who were willing to pay for the privilege to have their letters picked out from the general heap and delivered by special postmen, and so enable them to get their correspondence an hour earlier than those who did not pay the 'quarterage,' as it was called, of five shillings (per quarter), and which, it appears, went into the pockets of the postmen concerned, many of whom, we are told, and it can easily be understood, thus made incomes of from three to four hundred pounds a year. However beneficial such a system was to commerce and trade in London, it operated most unfairly on ordinary correspondents, and it was certainly not the least of the evils which the introduction of Penny Postage swept away. It is not necessary to enter at any length into all the arguments that weighed with Rowland Hill in propounding his great scheme. It need only be very briefly stated that the great point to which he applied himself was the cost to the Post-office of receiving, transmitting, and delivering a letter. Having roughly and, as subsequently proved, not inaccurately calculated the average postage at sixpence farthing per letter, he then went to work to ascertain the expenses of management; and the result of his investigations showed that, no matter what distance had to be traversed, the average cost of each letter to the government was less than one-tenth of a penny! From this there was only one conclusion that could well be forced on his mind, and that was a uniform rate of postage. Having solved this great problem, there were many other matters of adjustment and improvement to which his attention had to be given. He was, for example, not long in deciding that the charge according to enclosures was an iniquitous one, and that a just and fair tax could only be made according to weight. Then, again, he clearly saw that the principle of throwing the postage on the recipients of letters was an improper one, while it was also a burden on the Post-office employees. The prepayment of postage became necessarily a feature of his plan; but he experienced some difficulty in arriving at a feasible method of adopting it. At first he considered that this might be carried out by payment of money over the counter; but he subsequently came to the conclusion that the purposes of the public and the Post-office would be better served by the use of some kind of stamp or