And lastly, we have the “Great Highland Bagpipe.” In this instrument a valved tube leads from the mouth to an air-tight bag which has four other orifices, three large enough to contain the base of three fixed long tubes termed drones, and another smaller, to which is fitted the chanter. The three are thrown on the shoulder while the latter is held in the hands. All four pipes are fitted with reeds, but of different kinds. The drone reeds are made by splitting a round length of “cane” or reed backward from a cross cut near a knot or joint towards the open end. They thus somewhat resemble the reed in organ pipes, the loose flap of cane replacing the tongue, and the uncut part the tube or reed proper. They are set downward in a chamber at the base of the drone, so that the current of air issuing from the bag tends to set the tongue in vibration. The drone reeds are only intended to produce a single note, which can be tuned by a “slider” on the pipe itself, varying the length of the consonating air column. The chanter reed is different in form, being made of two approximated edges of cane tied on to a metal tube. It is thus essentially a double reed, like that of the oboe or bassoon, while the drone reed roughly represents the single beating reed of the organ or clarionet. The drone reed is an exact reproduction of the “squeaker” which children in the fields fashion out of joints of tall grass, probably the oldest form of this reed in existence. The drones are in length proportional to their note, the longest being about three feet high. The chanter is a conical wooden tube, about fourteen inches long, pierced with eight sounding holes, seven in front for the fingers and one at the top behind for the thumb of the right hand. Two additional holes bored across the tube below the lowest of these merely regulate the pitch, and are never stopped; were it not for them, however, the chanter would require to be some inches shorter, and would consequently have a less pleasing appearance. [Illustration: THE GREAT HIGHLAND BAGPIPE ]