deletions | additions       diff --git a/subsection_Mechanisms_and_Instrumentation_subsubsection__.tex b/subsection_Mechanisms_and_Instrumentation_subsubsection__.tex  index 705e4b9..9327627 100644  --- a/subsection_Mechanisms_and_Instrumentation_subsubsection__.tex  +++ b/subsection_Mechanisms_and_Instrumentation_subsubsection__.tex 
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\subsubsection{Navigation and Dirigibility}  \subsubsection{Detection of Depth and End of Ice Column} * Echo sounder etc