We have used a Fourier transform spectrometer aboard the NASA DC-8 aircraft during the Airborne Antarctica Ozone Experiment to record infrared absorption spectra of the polar stratosphere. From these high-resolution spectra we derived vertical column amounts above flight altitude of HCl, HF, NO, NO2, ClONO2, and HNO3 for 10 flights poleward of 60 ¿S. Within the polar vortex, where low values of total ozone are observed during the latter part of the observation period, we observed markedly reduced columns of HCl, NO2, and HNO3. HCl values in the vortex were in the range of 3--9¿1014 molecules cm-2, compared with values around 15--20¿1014 molecules cm-2 in mid-latitudes and ~30¿1014 molecules cm-2 in high northern latitudes. The ratio of HCl to HF was also abnormally low, implying that the HCl had been chemically or physically removed, rather than simply being redistributed by atmospheric motion. NO2 values within the inner vortex were near 5.0¿1014 molecules cm-2, about a factor of 4 less than columns outside the vortex boundary. HNO3 values were lower by a factor of 3 within the vortex, compared with a column of approximately 15¿1015 molecules cm-2 outside the vortex. HNO3 columns outside the vortex are similar to northern hemisphere values. The ClONO2 column was relatively large within the vortex, peaking at ~30¿1014 molecules cm-2 near the boundary of the vortex. An upper limit of ~8¿1014 molecules cm-2 is placed on the column amount of HOCl inside the vortex. ¿ American Geophysical Union 1989