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The differential elastic scattering cross section of alpha particles by O 18 has been measured for alphaparticle energies between 2.4 and 3.5 MeV and for 0 c . m . =90. 0°, 125.3°, 140.7°, 152.3°, and 164.4° in order to determine the level parameters of excited states in Ne 22 . The resonances were analyzed using the singlelevel and two-level approximation to determine reduced widths and resonance energies of the levels. Scattering anomalies were observed at bombarding alpha-particle energies of 2.48, 2.56, 2.72, 2.90, 3.17, and 3.33 MeV which correspond to excited states of Ne 22 with the following energies, angular momenta, and parities: 11.70 MeV, /* = 2+; 11.76 MeV, /*=1-; 11.89 MeV, /*=1-; 12.04 MeV, /* = 0+; 12.26 MeV, J* = Q + ; 12.39 MeV, 7 7r = 2 + . For bombarding alpha-particle energies in the vicinity of 3.5 MeV, it was found necessary to include the effects of two levels above 3.5 MeV to fit the scattering data: 12.57 MeV, /*=1~ and 12.61 MeV, J v~\~~. None of the levels observed have reduced widths greater than 9% of the Wigner limit.

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