Girard, Kansas: Haldeman-Julius, 1929. 32mo, stapled wraps [2 staples]. Gibbs 1327, first noted state of contents, first noted wrapper state.
Intriguing work about the physics, history, and psychology of sound, written by the married Kansas couple.
Wraps faded and a little rubbed at extremities, small chip to heel. Very good. Item #30480