Earlier measurements of the differential cross section for ~z + photoproduction on hydrogen at forward angles have been extended up to 180 ~ The pions were analysed in angle and momentum by a magnetic spectrometer. Angular distributions have been measured at 16 energies between 220 and 425 MeV. Most of them cover the region between 15 ~ and 180 ~ in steps of 5 degree with a statistical error of about 3 %. Moravcsik equivalent fits give a very good representation of the data.

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Differential cross sections for coherent n~ from deuterium have been measured in the photon energy range from 240 to 400 MeV and for pion c.m. angles between 70 ~ and 160 ~ . The recoil deuterons were analysed in angle and momentum by a magnetic spectrometer. The cross sections obtained were higher by a factor of about 2 compared with the results from Stanford [7], the only data available up to now in the first resonance region. Below the resonance the measured cross sections give a smooth extension to the low energy data from Glasgow [5] and Orsay [6].

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