The essential portions of a pipe are the mouth-piece, the tube, the water-sack, and the head. The two last pieces are united in the meerschaum and the clay-pipe into one. The mouth-piece, at the upper part, is wrought out of horn. It is made thicker or thinner, longer or shorter, with a greater or less bore, as it may be required. The long mouth-pieces, having various partitions, or members, as they are called, are so finely wrought that they are quite elastic, and are sold at a proportionate price. The mouth-piece is commonly united to the tube by an elastic portion called a Schlauch, which is constructed of elastic wire and silk. If the pipe is intended to be a very handsome one, there is still another piece interposed between the schlauch and the tube, which is made of roe's-horn, and styled the roe-crown. The tube itself is manufactured from various materials; the coarser ones out of juniper-wood, or cherry-tree, the finer ones out of beech and ebony; but that which is most highly valued, on account of its durability and agreeable odour, is the Turkish weichsel, or agriot, a kind of wild cherry. The tubes are, again, of different lengths and thickness, from a span in length to some yards. The Turkish pipes are the longest. To the tube is generally affixed the water-sack, called also by the northern Germans the sponge-box; a little reservoir, of wedgewood or porcelain. For elegant pipes still more beautiful, but less useful ones, are made of horn. The pipe-head is, however, the part on which the most cost, art, and ornament are bestowed. The lower part of it, which, tapering away, is fitted into the water-sack, is called the boot. The head is adorned with a variety of paintings and inscriptions. We see upon them, as upon snuff-boxes, many humorous occurrences perpetuated. They are enriched with the portraits of handsome women and celebrated men, and the painting is sometimes so beautiful as to raise their price to several _Louisdore_ each. The students are accustomed to compliment each other with presents of pipe-heads, ornamented with their coats of arms, and a dedication on the reverse side. All the various sections of the pipe are so fitted to each other that you can readily separate them, in order to clean them; but they are prevented from separating when in use, by silk cords which pass through small metallic rings, and are secured at top and bottom. These cords serve also to hang them up by. On the pipes of the Chore-Burschen the cords proceeding from the head to the mouth-piece, are not only secured but continued, and hanging down at liberty, bear the coloured Chore-tassels.