Note 33 — INTRODUCTION.
Reading edition
The omichicahuaz, "strong bone," was constructed somewhat on the principle of a teponaztli. A large and long bone was selected, as the femur of a man or deer, and it was channeled by deep longitudinal incisions. The projections left between the fissures were rasped with another bone or a shell, and thus a harsh but varied sound could be produced.33