Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 607
t. — The trumpet isthe most ancient of wind instruments,and may be regarded as the prototypeof all instruments with cupped mouth-pieces. It consists of a long brasstube, tapering near the outer end into a bell (Fig.404). Its notes are those of an open tube, about asin the diagram below. On account… … Fig. 403. Fig. 402.
Physics
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