M. de Castelnau in his “Expédition dans l’Amérique” gives among the illustrations of objects discovered in ancient Peruvian tombs a flute made of a human bone. It has four finger-holes at its upper surface and appears to have been blown into at one end. Two bone-flutes, in appearance similar to the engraving given by M. de Castelnau, which have been disinterred at Truxillo are deposited in the British museum. They are about six inches in length, and each is provided with five finger-holes. One of these has all the holes at its upper side, and one of the holes is considerably smaller than the rest. The specimen shown is ornamented with some simple designs in black.