Slang is the language of the dark. Thought is affected in its gloomiest depths, and social philosophy is harassed in its most poignant undulations, in the presence of this enigmatical dialect, which is at once branded and in a state of revolt. There is in this a visible chastisement, and each syllable looks as if it were marked. The words of the common language appear in it, as if branded and hardened by the hangman's red-hot irons, and some of them seem to be still smoking; some phrases produce in you the effect of a robber's fleur-de-lysed shoulder suddenly exposed, and ideas almost refuse to let themselves be represented by these convict substantives. The metaphors are at times so daring that you feel that they have worn fetters. Still, in spite of all this, and in consequence of all this, this strange patois has by right its compartment in that great impartial museum, in which there is room for the oxydized sou as well as the gold medal, and which is called toleration. Slang, whether people allow it or no, has its syntax and poetry. It is a language. If, by the deforming of certain vocables, we perceive that it has been chewed by Mandrin, we feel from certain metonyms that Villon spoke it. That line so exquisite and so celebrated,-- "Mais où sont les neiges d'antan? (But where are the snows of yester-year?)" is a line of slang. Antan, _ante annum_, is a slang word of Thunes, which signified the past year, and, by extension, formerly. Five-and-thirty years ago, on the departure of the great chain-gang, in 1827, there might be read in one of the dungeons of Bicêtre this maxim, engraved with a nail upon the wall by a king of Thunes condemned to the galleys, "Les dabs d'antan trimaient siempre pour la pierre du Coësre," which means, "The kings of former days used always to go to be consecrated." In the thought of that king, the consecration was the galleys. The word _décarade_, which expresses the departure of a heavy coach at a gallop, is attributed to Villon, and is worthy of him. This word, which strikes fire, contains in a masterly onomatopœia the whole of Lafontaine's admirable line,-- "Six forts chevaux tiraient un coche."