Plasma and magnetic field data from the IMP 8 Earth-orbiting spacecraft and plasma data from the Voyager 2 spacecraft are analyzed to determined their frequency spectra. The resulting spectra are compared with solar oscillation mode frequencies which recent papers (particularly Thomson et al. [1995>) report are present in solar wind data. The frequency spectra of the plasma and magnetic field data sets are characterized by a diverse set of strong peaks, many of which are stronger than those occurring at frequencies associated with solar oscillatory modes. The frequencies of these peaks are not consistent between data sets, making it unlikely that they represent solar oscillation modes. Although the analysis technique used, the Lomb-Scargle method, does not permit accurate assignment of statistical uncertainties, it is clear that solar oscillatory frequencies are not the major contributors to the frequency spectra of these data. ¿ American Geophysical Union 1996