the seventh and eleventh harmonics not being in tune with the corresponding notes in our received scales, and the fundamental being again impracticable. To sound the lituus and buccina is to awaken the echoes of the ancient past; but, whether blown by Roman or Greek or Egyptian, we may be sure the harmonic division of a column of air into vibrating sections knows no change, and was the same then as now.
The Cornet with two valves shows one of the earliest adaptations of the now dominant pistons as introduced by C. Saxe of Brussels.
One Trumpet, by Johann Wilhelm Haas of Nuremberg, is of obsolete make; the other, also by Haas, is curved in half-circles to facilitate the production of stopped notes, and is curiously engraved.
These five instruments belong to the Brussels Conservatoire Royal.
