1. We wish to acknowledge the unstinting support given the Multi-Media Group by the directors and staff of Harvard Project Physics.
2. Laboratory ‘stations’ are demonstrations which are set up so that students may observe and discuss them in small groups, and without recording quantitative data or writing reports.
3. We wish to acknowledge the assistance of Modern Learning Aids in furnishing films to experimental classes.
4. It should also be pointed out that these are experimental materials (film loops, especially) which were the early rough trial prints and have since been re-edited and revised. This is intended as a demonstration of a research approach, and not a judgment of media.