Theoretical values are given for the principal, semiannual, and fortnightly nutations, based on the central particle and Roche Earth models. These are compared with Federov's observed values. Agreement is better than in any previous comparison. The fortnightly terms are almost the same for both models and agree with observation. Both components of the semiannual motion agree best with the central particle model. The observed 19-yearly motion in obliquity agrees best with the central particle model, that in longitude best with the Roche model, and some discrepancy would remain for any model.