And if he should be obstinate on this point, they would just let him take his own way, and charge prices to suit himself, while they proceeded to make a new bargain with another carrier, who would agree to accommodate them at reasonable prices adjusted on the basis of their patronage. And if an appeal should be made to their sympathy or charity, to help the growing hamlet, they would say, that it was better to give charity out of their pockets than by paying a high price on their parcels; for then those would give who were able and willing, and would know how much they gave. This covers the whole case of arranging postage as a matter of equal contract. The just measure of charge is, the lowest rate at which the work can be afforded by individual enterprise on the best self-supporting routes. Plainly, no other rate can be kept up by open competition on these routes. And if these routes are lost by competition, you must charge proportionably higher on the rest, which will throw the next class of routes into other hands, and so on, until nothing is left for you but the most costly and impracticable portions of the work. The only material exception to this rule would be, where there is an extensive and complicated combination of interests, among which the general convenience and even economy will be promoted by establishing a uniformity of prices, without reference to an exact apportionment of minute differences. It can be easily shown, that all these considerations would be harmonized by no rate of postage on letters, higher than the English 1_d._, or with us two cents for each half ounce. Considered as a business question, unaffected by the assumed power of monopoly by the government, the reasonings of the parliamentary reports and the results of the British experiment abundantly establish this rate to be the fair average price for the service rendered. A moderate business can live by it, if economically conducted, and a large business will make it vastly profitable, as is seen in the payment of four or five millions of dollars a year into the public treasury of Great Britain, as the net profits of penny postage. If we look at the post-office in the more philosophical and elevated aspect of a grand governmental measure, enjoined by the people for the good of the people, we shall be brought to a similar conclusion. The constitutional rule for the establishment of the post-office, is as follows: “Congress shall have power to— “Establish post-offices and post-roads.”