[en] During the year February 1, 1978 to January 31, 1979, the major activities under Task A were completion of the analysis of data taken in Experiment number 99, measurement of the cross section for completion of new π^-p→π^-π⁺n, apparatus and software for Experiment number 337, measurement of the cross section for π^-p→π^-π⁺n at 200 and 229 MeV, taking data for Experiment number 337, continued preparation for Experiment number 309, and double charge exchange in the disintegration of ¹⁶O, ⁴⁰Ca and ²⁰⁸Pb, consideration of a possible collaboration for detection of protons from μ^- capture on nuclei and initiation of an association with physicists at Bates on measurements of (e,e'). The completed analysis of Experiment number 99 has left previous conclusions, that the integrated reaction cross section at the lowest energy is twice that interpolated from early measurements, intact. Experiment number 337 was mounted and the preliminary results for the reaction cross section at 229 MeV agree well with Experiment number 99. The more sophisticated instrumentation used in the latest measurements builds confidence in the validity of these results. An experiment on double charge exchange is being prepared and one on μ^- capture is being considered. A graduate student from the University of Wyoming has begun thesis research at Bates