deletions | additions       diff --git a/ch_software.tex b/ch_software.tex  index 9f0881c..980d147 100644  --- a/ch_software.tex  +++ b/ch_software.tex 
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\input{preface}  \chapter{Software developed during this thesis}  \label{ch:software}  \section{Preface}  Software development is severely underappreciated in astronomy. It is not  particularly difficult for expert developers to make production-level codes  diff --git a/h2co_lowdens.tex b/h2co_lowdens.tex  index 29227a9..74aec42 100644  --- a/h2co_lowdens.tex  +++ b/h2co_lowdens.tex 
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%\input{preface} \input{preface}  \section{Non-star-forming, low column-density clouds in absorption}  In \citet{Ginsburg2011a}, we noted that the \formaldehyde densitometer revealed  volume densities much higher than expected given the cloud-average densities 
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% functions of column density that have recently become popular  % \citep[e.g][]{Kainulainen2009}.  %\input{solobib}  %\end{document} \input{solobib}  \end{document}  diff --git a/introduction.tex b/introduction.tex  index f8b3b55..6f75cb8 100644  --- a/introduction.tex  +++ b/introduction.tex 
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%\subsection{Statistics and Data Processing}  %This is a data-rich thesis, and as such has some emphasis on data statistics.  % \section{Observational Tools: Molecular Line Spectroscopy}  \section{Outline}  This thesis includes 6 chapters.  Chapter \ref{ch:w5} describes observations of the W5 star-forming region to identify outflows;