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We present a compilation of data for all 258 gamma-ray Ñares detected above 300 keV by the Gamma Ray Spectrometer (GRS) aboard the Solar Maximum Mission satellite. This gamma-ray Ñare sample was collected during the period from 1980 February to 1989 November ; covering the latter half of the 21st solar sunspot cycle and the onset of the 22d solar sunspot cycle. We describe the SMM/GRS instrument, its in-orbit operation, and the principal data reduction methods used to derive the gamma-ray Ñare properties. Utilizing measurements for 185 Ñares that were sufficiently intense to allow the derivation of gamma-ray spectra, we present an atlas of time proÐles and gamma-ray spectra. The Ñare parameters derived from the gamma-ray spectra include bremsstrahlung Ñuence and best-Ðt power-law parameters, narrow nuclear line Ñuence, positron annihilation line Ñuence, neutron capture line Ñuence, and an indication of whether or not emissions greater than 10 MeV were present. Since a uniform methodology was adopted for deriving the parameters, this atlas should be very useful for future statistical and correlative studies of solar Ñares. Subject headings : catalogs È gamma rays : bursts È Sun : Ñares 409 410 VESTRAND ET AL.Vol. 120

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