Measurement of speeds of sound u have been made in binary mixtures of n-butanol (n-C4H9OH) with n-pentane (n-C5H12), or n-hexane (n-C6H14), or n-heptane (n-C7H16), or 2,2,4-trimethylpentane {2,2,4-(CH3)(3)C5H9} at temperature T = 288.15 K, in binary mixtures of n-hexanol (n-C6H13OH) with n-C5H12, or n-C6H14 at T = 298.15 K, and in binary mixtures of n-C6H13OH with n-C7H16 or n-octane (n-C8H18) at T = 298.15 K and T = 303.15 K. Values of u have been used to calculate the apparent excess speeds of sound Deltau and the isentiopic compressibilities kappa(S) for these mixtures. The excess isentropic compressibilities kappa(S)(E) have also been calculated from the values Of kappa(S). Throughout the entire range of mole fraction x of n-C4H9OH or n-C6H13OH, the K E has been found to be negative for f (1 - x) n-C5H12 + x n-C4H9OH} -and {(1 - x)2,2,4-(CH3)(3)C5H9+ x n-C4H9OH} at T - 288.15 K, and for {(1 - x) n-C5H12 + x n-C6H13OH} at T = 298.15 K. The kSE has been found to be positive at lower values of x, and negative at higher values of x for {(1 - x) n-C6H14 + x n-C4H9OH} and {(1 - x) n-C7H16+x n-C4H9OH} at T = 288.15 K. The inversion of sign of kappa(S)(E) occurs at x approximate to 0.20 and x approximate to 0.45, respectively, for these mixtures of n-C4H9OH. The K-S(E) has been found to be positive at lower x values and negative at higher x values for {(1 - x) n-C6H14+x n-C6H13OH}, {(1 - x) n-C7H16 + x n - C6H13OH}, and {(1 - x) n-C8H18 + x n-C6H13OH} at T = 298.15 K and T = 303.15 K. At T = 298.15 K, the inversion of sign Of kappa(S)(E) occurs at x approximate to 0.12, x approximate to 0.18, and x approximate to 0.15, respectively, for these mixtures of n-C6H13OH. The Deltau and kappa(S)(E) have been fitted with smoothing equations.