deletions | additions       diff --git a/layout.md b/layout.md  index e45ec93..afb161d 100644  --- a/layout.md  +++ b/layout.md 
...
subsection_Drilling_Methods_subsubsection_Mechanical__.tex  subsection_Selected_Design_Sketch_of__.tex  subsection_Mechanisms_and_Instrumentation_subsubsection__.tex  subsubsection_Navigation_and_Dirigibility__.tex  subsubsection_Detection_of_Depth_and__.tex  subsection_Communication_Systems__2.tex  subsubsection_Ice_Losses_As_we__.tex