Zeroth moment maps of OH emission in the J = 29/2, F' – F'' = 14 – 14 (left panels) and 15 – 15 (right panels) transitions in R Aql and VX Sgr as marked. Figure caption as in Fig. 22 except for the velocity intervals in the F' – F'' = 14 – 14 and 15–15 transitions which are: 46.8 to 53.8 km s⁻¹ and 46.4 to 53.4 km s⁻¹ in R Aql; 3.0 to 15.8 km s⁻¹ and 6.1 to 17.8 km s⁻¹ in VX Sgr. The line HPBWs are (29×20) mas at PA −43° and (35×23) mas at PA −89° in R Aql and VX Sgr, respectively. The continumm HPBWs are (24×22) mas at PA −13° (R Aql) and (28×20) mas at PA 89^° (VX Sgr).