The spectroscopic observations were made between Apr. 15, 1994 and Feb. 15, 1996. We obtained a total of 123 galaxy spectra. All of the observations were made with 2.16 m telescope at the Xinglong Station of Beijing Astronomical Observatory using Zeiss universal spectrograph with a grating of dispersion.
Before Nov. 5, 1994, a Tek CCD which covered a range from to 7100 at a resolution of (2 pixels) was used. After that, a Tek CCD which covered a range from to at a resolution of (2 pixels) was employed.
In most cases, slit width of about 3'' was chosen to match the typical seeing disc at Xinglong Station, but occasionally, the seeing disc was smaller than 2'' or larger than 5'' . Thus may affect the spectral classification. Slit position angles of were generally used. For objects with two close nuclei (separation ), the slit was rotated such that two spectra could be obtained simultaneously.
The seeing was about 3'' to 4'' on most of the observation nights. In order to perform a relative flux calibration, KPNO standard stars were also observed on each night.
Table 2 lists the observations by target objects. The standard IRAS name, together with one upper case letters representing the individual components (See Fig. 9 for identifications) are listed in Col. 1. Column 2 to Col. 10 give for each source: coordinates, observation date (Beijing Time), exposure time, airmass, slit width and position angle respectively. The sources flagged with ticks in Col. 11 were observed during good weather condition.