The standard (p degrees = 0.1 MPa) molar enthalpies of formation Delta(f)H(m) degrees (I or cr) al the temperature T = 298.15 K were measured using combustion calorimetry for N,N-dimethyloctylamine (A), 2,4-dimethylaniline (B), 2,5-dimethylaniline (C), N-ethylaniline (D), N-benzylaniline (E), and N,N-dimethylaniline (F). The standard molar enthalpies of vaporization Delta(l)(g)H(m) degrees or sublimation Delta(cr)(g)H(m) degrees of the compounds were obtained from the temperature variation of the vapour pressure measured in a flow system. In order to accomplish the thermochemical investigation of tert-butyl-methylamine (G), tert-butyl-isopropylamine (H), and 2,2,6,6-tetramethylpiperidine (I), their molar enthalpies of the vaporization were measured by the transpiration method. The following results were obtained : [GRAPHICS]