Excess enthalpies, densities, and speeds of sound at temperatures of (283.15, 298.15, and 313.15) K are reported for binary mixtures of beta-pinene + beta-ethanol and 1-pinene + 1-propanol. Excess molar volumes have been calculated from the densities. The deviations in the speeds of sound have also been estimated. All of the properties have been fitted to Pade approximants. Excess molar enthalpies and excess molar volumes are positive for both mixtures, whereas the speed of sound deviations show negative values. The values of these properties are discussed in terms of the molecular interactions. The enthalpic and volumetric behaviors of the mixtures are compared with those of the mixtures of ethanol or I-propanol with cyclohexane or methylcyclohexane, which are two simple hydrocarbons whose basic ring is similar to that of beta-pinene.