The postman's double-knock at the door the next morning is "more germain to the matter." How that knock often goes to the heart! We distinguish to a nicety the arrival of the Two-penny or the General Post. The summons of the latter is louder and heavier, as bringing news from a greater distance, and as, the longer it has been delayed, fraught with a deeper interest. We catch the sound of what is to be paid--eightpence, ninepence, a shilling--and our hopes generally rise with the postage. How we are provoked at the delay in getting change--at the servant who does not hear the door! Then if the postman passes, and we do not hear the expected knock, what a pang is there! It is like the silence of death--of hope! We think he does it on purpose, and enjoys all the misery of our suspense. I have sometimes walked out to see the Mail-Coach pass, by which I had sent a letter, or to meet it when I expected one. I never see a Mail-Coach, for this reason, but I look at it as the bearer of glad tidings--the messenger of fate. I have reason to say so.--The finest sight in the metropolis is that of the Mail-Coaches setting off from Piccadilly. The horses paw the ground, and are impatient to be gone, as if conscious of the precious burden they convey. There is a peculiar secresy and despatch, significant and full of meaning, in all the proceedings concerning them. Even the outside passengers have an erect and supercilious air, as if proof against the accidents of the journey. In fact, it seems indifferent whether they are to encounter the summer's heat or winter's cold, since they are borne through the air in a winged chariot. The Mail-Carts drive up; the transfer of packages is made; and, at a signal given, they start off, bearing the irrevocable scrolls that give wings to thought, and that bind or sever hearts for ever. How we hate the Putney and Brentford stages that draw up in a line after they are gone! Some persons think the sublimest object in nature is a ship launched on the bosom of the ocean; but give me, for my private satisfaction, the Mail-Coaches that pour down Piccadilly of an evening, tear up the pavement, and devour the way before them to the Land's End! In Cowper's time, Mail-Coaches were hardly set up; but he has beautifully described the coming in of the Post-Boy:--