Thomas D. Rossing
Phys. Dept., Northern Illinois Univ., DeKalb, IL 60115
Holographic interferometry has been used to compare the modes of vibration in two G[sub 1] handbells, one of bronze and one of aluminum [Rossing and Mansell, J. Acoust. Soc. Am. 93, 2382 (A) (1993)]. Except for the (2,0) and the (3,0) modes, tuned to have a 3:1 frequency ratio, all the other modes in the bronze and aluminum bells occur at different frequencies. In the bronze bell, we observed an unusual family of (m,3*) modes, not found in other bells. [sup a)]Present address: Phys. Dept., South Florida Univ., Tampa, FL 33620.