Three different aspects of the project were studied during the past year. They were (1) Design and operation of an apparatus to measure stick-slip amplitudes at various velocities and using springs of different stiffness, (2) Calculation of the sirs distribution of asperities through the autocorrelation technique described in earlier reports, (3) Studies of the frictional properties of rubber at low speeds and with controlled atmosphere and temperature. These experiments are described in the three sections of the report. In addition work has continued on the design and operation of a very low speed friction apparatus which records velocities as well as friction forces, readings being taken automatically for short periods of time at regular intervals to conserve paper during an extended experiment. The various parts of the apparatus have functioned separately and the completed equipment will be described in a subsequent report.