All Figures

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{3910.f2.ps} \end{figure}$ Figure 2: WR 126 Average HI distribution in the velocity interval 20.1 to 25.2 $\rm km~s^{-1}$ . The star symbol indicates the optical position of WR 126. The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -24 to 20 K in steps of 4 K.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{3910.f4.ps} \end{figure}$ Figure 4: WR 154 Average HI distribution in the velocity interval -32.0 to -26.8 $\rm km~s^{-1}$ . The star symbol indicates the position of WR 154 and the filled triangles the position of the B stars (see text). The half beam width ( $\rm HPBW \sim 9$ $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -10 to 30 K in steps of 5 K.
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In the text

$\begin{figure} \par\includegraphics[width=7.7cm,clip]{3910.f6.ps} \end{figure}$ Figure 6: WR 155 Average HI distribution in the velocity interval -30.7 to -25.6 $\rm km~s^{-1}$ . The star symbol indicates the position of WR 155. The filled and open triangles indicate the position of the B and OB star, respectively (see text). The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -4 to 14 K in steps of 2 K.
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In the text

$\begin{figure} \par\includegraphics[width=16.5cm,height=17cm,clip]{3910.f1.ps} \end{figure}$ Figure 1: WR 126 Effelsberg grey-scale images showing the HI distribution in the velocity range 14.9 to 25.2 $\rm km~s^{-1}$ . The half beam width ( $HPBW \sim 9$ $^{\prime }$ ) is shown in the upper left corner of the first image. The stellar position is indicated by a star symbol. The central velocity of every image is given in the upper left corner. Contour levels are at -24 to 20 K in steps of 4 K. For all images, darker shadings means higher brightness temperature.
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In the text

$\begin{figure} \par\includegraphics[width=16.5cm,height=17cm,clip]{3910.f3.ps} \par\end{figure}$ Figure 3: WR 154 Effelsberg grey-scale images showing the HI distribution in the velocity range -34.6 to -24.3 $\rm km~s^{-1}$ . The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner of the first image. The stellar position is indicated by a star symbol. The central velocity of every map is specified in the upper left corner. Contour levels are at -10 to 30 K in steps of 5 K.
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In the text

$\begin{figure} \par\includegraphics[width=14.8cm,height=15.6cm,clip]{3910.f5.ps} \end{figure}$ Figure 5: WR 155 Effelsberg grey-scale images showing the HI distribution in the velocity range -34.6 to -24.3 $\rm km~s^{-1}$ . The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner of the first image. The stellar position is indicated by a star symbol. The central velocity of every image is specified in the upper left corner. Contour levels are at -10 to 30 K in steps of 5 K for the velocity range -34.6 to -29.4 $\rm km~s^{-1}$ and at -4 to 14 K in steps of 2 K for the rest.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{3910.f2.ps} \end{figure}$	Figure 2: WR 126 Average HI distribution in the velocity interval 20.1 to 25.2 $\rm km~s^{-1}$ . The star symbol indicates the optical position of WR 126. The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -24 to 20 K in steps of 4 K.
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$\begin{figure} \par\includegraphics[width=8.8cm,clip]{3910.f4.ps} \end{figure}$	Figure 4: WR 154 Average HI distribution in the velocity interval -32.0 to -26.8 $\rm km~s^{-1}$ . The star symbol indicates the position of WR 154 and the filled triangles the position of the B stars (see text). The half beam width ( $\rm HPBW \sim 9$ $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -10 to 30 K in steps of 5 K.
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$\begin{figure} \par\includegraphics[width=7.7cm,clip]{3910.f6.ps} \end{figure}$	Figure 6: WR 155 Average HI distribution in the velocity interval -30.7 to -25.6 $\rm km~s^{-1}$ . The star symbol indicates the position of WR 155. The filled and open triangles indicate the position of the B and OB star, respectively (see text). The half beam width (HPBW $\sim$ 9 $^{\prime }$ ) is shown in the upper left corner. Contour levels are at -4 to 14 K in steps of 2 K.
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