Page:The New International Encyclopædia 1st ed. v. 16.djvu/579

* PSYCHOLOGICAL APPARATUS 1. SOUND PENDULUM 2. COLOR MIXER AND CAMPIMETER 3. VERNIER CHRONOSCOPE 4. SIMPLE AESTHESIOMETER 5. HIPP CHRONOSCOPE 6. GRIESSACH'S AESTHESIOMETER 7. SOUND CAGE 8. ELECTRIC MOTORS FOR COLOR MIXING.