deletions | additions       diff --git a/Using_the_midIR_inte.tex b/Using_the_midIR_inte.tex  index 13b4ead..02c195a 100644  --- a/Using_the_midIR_inte.tex  +++ b/Using_the_midIR_inte.tex 
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For the infall analysis, we have assumed an optically thick line. An alternative interpretation of these three line-profiles is that they are caused by alignment of two clouds along the line-of-sight. Observing an optically-thin tracer, such as $^{34}$CS would distinguish between these interpretations since the infall-model would predict a single-peak whereas the two cloud model predicts a double-peak.  N65-2, the other source which shows a non-gaussian line shape, is stronger on the red-shifted side. This shape is not consistent with the infall model of Myers et al. (1996). This shape could be caused by two unrelated clouds along the line of the sight. There is further evidence of this interpretation in the map of N65 (see discussion below). in section 3.2).