Abstract
Anomalies in resistivity and magnetic susceptibility of Mo8O23 and gamma Mo4O11 are presented. The temperature dependence of the susceptibility of Mo8O23 seems to be explained by the fluctuation theory of P.A. Lee et al. (1973) for the Peierls transition of one-dimensional conductors. The compound gamma Mo4O11 undergoes a phase transition to the charge density wave state at 70K and the fluctuation of the charge density wave seems to persist up to a temperature higher than 240K.