I am willing to believe that there _are_ people who sleep with their feet uncovered, when the mercury at the bedside is below freezing, because I have seen it done, and not as a penance, but a privilege, to which the physician gave his consent; and I have myself, springing from a warm bed, stepped into a tub of water frozen so hard as to require my whole weight to crush a passage through the ice. I have done this often, but not for the pleasure of it. I have also been through a course of _calido-frigido_. I suppose you know all about that, Mr. EDITOR, _calido-frigido_? Well, I will tell you the order of proceeding.
Get into a warm bath, so exactly tempered to your delicacy of outline, that the change from the warm air of the room is insensible, and having stretched yourself, part your limbs, so as to produce a vacant space in the water, and into this space let your servant pour hot water which you will pump up and down with a long-handled brush. (I say you _will_ pump, because if you don't, it will be too hot there.) The servant then brings _boiling_ water and continues to pour, and you to pump, till your nerves begin to slacken, and insensibly to you, the pump works slower and slower, and at last it stops. You think you are still pumping, but that is a delusion. You are now in boiling water, but like the approach of vice, or any other insidious thing, the change has been so gradual, that you are not sensible of boiling; you only _know_ that you are very comfortable, and that is sufficient. 'John, you may go,' but John knows better. Presently you begin to confess that you are a little happier than usual, and you speculate about Heaven; where it may be; how far off, and whether it is possible to make a nearer approach before breakfast; and then a faintness comes over you, a die-away-ative-ness, during which, you forgive your enemies, and bless those that persecute you; in short, you love every body and every thing beyond all conception, and you would clasp the whole universe with all its black spots of sin and damnation, for your heart is melting within you. All this time, John has an eye upon you; and just as you are going to sleep, with the infatuation of a man sucking exhilarating gas, he lifts you from the bath, and with a struggle, you are landed upon the floor. You stagger, and grasp at a chair to keep from falling, and the servant, dipping a pail in a tub of iced-water, gives you the whole contents at a single dash. First in front, then in the rear, then under each arm; after which he jumps upon the bath, and drops a pail-full on top of your head. Of course you try to knock him down with a chair, or poker; but at every attempt, _splash!_ comes the bucket of water; and at the last throw, the servant disappears. Such, Sir, is the operation; and they say there is no living in this climate without going through it once or twice a week. If you have lived so long, Mr. Editor, without doing it, don't flatter yourself that you will live much longer. You may die suddenly, some cold morning, from not practising the calido-frigido. After the calido-frigido, you breakfast; and stepping into the street, any warm morning in January, the snow is melting from the hot sun, and the gutters are running; the effect of which is so sickening that every body is at a gasp. But _you_ delight in it. In the evening of the same day you walk home to dinner in a snow-storm; streets glazed with ice, wind blowing a hurricane out of the north, and Fahrenheit, as the evening papers tell you, twenty degrees below zero; but to _you_, the weather is charming; only a fine bracing atmosphere. Why? You and your servant went through the same contrasting operation before breakfast. Sir, you are acclimated.