Excess volumes V-E, measured at the temperature 313.15K in a dilution dilatometer, are reported for (N,N-dimethylformamide + water), (N,N-dimelhylformamide + propan-1-ol), (propan-1-ol + water), and (N,N-dimethylformamide + propan-1-ol + water). The results have been analysed using Various correlation equations. The possibility of predicting the ternary V-E values from the binary ones is examined.