diff --git a/conda.recipe/meta.yaml b/conda.recipe/meta.yaml
index e33d577..32cfb73 100644
--- a/conda.recipe/meta.yaml
+++ b/conda.recipe/meta.yaml
@@ -42,7 +42,6 @@ test:
     - jupyter_contrib_nbextensions.migrate
     - jupyter_contrib_nbextensions.nbconvert_support
     - jupyter_contrib_nbextensions.nbconvert_support.embedhtml
-    - jupyter_contrib_nbextensions.nbconvert_support.latex_envs
     - jupyter_contrib_nbextensions.nbconvert_support.pp_highlighter
     - jupyter_contrib_nbextensions.nbconvert_support.pre_codefolding
     - jupyter_contrib_nbextensions.nbconvert_support.pre_collapsible_headings
diff --git a/src/jupyter_contrib_nbextensions/templates/latex_envs.tpl b/src/jupyter_contrib_nbextensions/templates/latex_envs.tpl
deleted file mode 100644
index fd77ac8..0000000
--- a/src/jupyter_contrib_nbextensions/templates/latex_envs.tpl
+++ /dev/null
@@ -1,91 +0,0 @@
-{%- extends 'full.tpl' -%}
-
-
-{%- block html_head -%}
-
-  <meta charset="utf-8"/>
-
-<!-- javascript from CDN for conversion -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/0.3.5/marked.js"></script>
-
-    
-
-{% if nb['metadata']['latex_envs']['eqLabelWithNumbers'] == True %}
-<script type="text/x-mathjax-config">
-// make sure that equations numbers are enabled
-MathJax.Hub.Config({ TeX: { equationNumbers: {
-    autoNumber: "AMS", // All AMS equations are numbered
-    useLabelIds: true, // labels as ids
-    // format the equation number - uses an offset eqNumInitial (default 0)
-    formatNumber: function (n) {return String(Number(n)+Number({{nb['metadata']['latex_envs']['eqNumInitial']}} ))} 
-    } } 
-});
-</script>
-{% else %}
-<script type="text/x-mathjax-config">
-// make sure that equations numbers are enabled
-MathJax.Hub.Config({ TeX: { equationNumbers: {
-    autoNumber: "none", // All AMS equations are numbered
-    useLabelIds: true, // labels as ids
-    } } 
-});
-</script>
-{% endif %}
-
-
-{{ super() }}
-
-
-
-<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
-
-
-<!-- stylesheet from CDN -->
-<link rel="stylesheet" type="text/css" href="https://rawgit.com/ipython-contrib/jupyter_contrib_nbextensions/master/src/jupyter_contrib_nbextensions/nbextensions/latex_envs/latex_envs.css">
-
-<!-- Custom stylesheet, it must be in the same directory as the html file -->
-<link rel="stylesheet" href="custom.css"> 
-
-<!-- Load mathjax 
-<script src="https://rawgit.com/ipython-contrib/jupyter_contrib_nbextensions/master/src/jupyter_contrib_nbextensions/nbextensions/latex_envs/thmsInNb4.js"></script>
--->
-<script type="text/javascript"  src="https://rawgit.com/jfbercher/jupyter_contrib_nbextensions/latex_envs/src/jupyter_contrib_nbextensions/nbextensions/latex_envs/thmsInNb4.js"> </script>
-
-
-
-<script>
-$( document ).ready(function(){
-
-        //Value of configuration variables, some taken from the notebook's metada. 
-        eqNum = 0; // begins equation numbering at eqNum+1
-        eqLabelWithNumbers = "{{nb['metadata']['latex_envs']['eqLabelWithNumbers']}}"=="True" ? true : false; //if true, label equations with equation numbers; 
-                                       //otherwise using the tag specified by \label
-        conversion_to_html = false;
-        current_cit=1;
-        cite_by='key';  //only number and key are supported
-        //var document={}
-        document.bibliography={};
-
-
-        // fire the main function with these parameters
-        var html_to_analyse = $('body').html()
-        var html_converted = thmsInNbConv(marked,html_to_analyse);
-        $('body').html(html_converted)
-
-    });
-</script>
-
-{%- endblock html_head -%}
-
-{% block body %}
-
-
-{{ super() }}
-
-
-
-{%- endblock body %}
-
-{% block footer %}
-</html>
-{% endblock footer %}
diff --git a/src/jupyter_contrib_nbextensions/templates/thmsInNb_article.tplx b/src/jupyter_contrib_nbextensions/templates/thmsInNb_article.tplx
deleted file mode 100644
index e6a8993..0000000
--- a/src/jupyter_contrib_nbextensions/templates/thmsInNb_article.tplx
+++ /dev/null
@@ -1,170 +0,0 @@
-((*- extends 'article.tplx' -*))
-
-((* block h1 -*))\section((* endblock h1 -*))
-((* block h2 -*))\subsection((* endblock h2 -*))
-((* block h3 -*))\subsubsection((* endblock h3 -*))
-((* block h4 -*))\paragraph((* endblock h4 -*))
-((* block h5 -*))\subparagraph((* endblock h5 -*))
-
-
-((* block abstract *))
-\tableofcontents
-%~\par
-%\newpage 
-((* endblock abstract *))
-
-%or?
-%((* block toc *))\tableofcontents((* endblock toc *))
-
-
-%===============================================================================
-% My custom output style
-%===============================================================================
-% A custom cell style that places code in a simple verbatim and prints "Input #"
-% and "Output #" cell prompts.
-
-((*- block in_prompt -*))
-% No prompt!
-%\textbf{Input \#{}(((cell.prompt_number)))}
-
-((*- endblock in_prompt -*))
-
-((*- block input -*))
-%
-\begin{lstlisting}
-((( cell.source )))
-\end{lstlisting}
-((*- endblock input -*))
-
-% ok
-
-%but may be this?
-
-%((*- block output_prompt -*))
-% No prompt!
-%\textbf{Output \#{}(((cell.prompt_number)))}
-%((*- endblock output_prompt -*))
-
-
-((* block author *))
-\author{J.-F. Bercher}
-((* endblock author *))
-
-((* block title *))
-\title{ }
-((* endblock title *))
-
-((* block packages *))
-((( super() )))
-\usepackage{listings}
-((* endblock packages *))
-
-%or -- both work
-((* block header *))
-((( super() )))
-%\usepackage{foo}
-((* endblock *))
-
-
-((* block commands *))
-    % Prevent overflowing lines due to hard-to-break entities
-    \sloppy
-    % Setup hyperref package
-    \hypersetup{
-      breaklinks=true, % so long urls are correctly broken across lines
-	pdftitle={\@title},
-	pdfauthor={\@author},
-	colorlinks=true, %colorise les liens
-	breaklinks=true, %permet le retour à la ligne dans les liens trop longs
-	urlcolor= blue, %couleur des hyperliens
-	linkcolor= blue, %couleur des liens internes
-	citecolor=blue,    %couleur des liens de citations
-	bookmarksopen=false,
-	pdftoolbar=false,
-	pdfmenubar=false,
-%      hidelinks
-      }
-    % Slightly bigger margins than the latex defaults
-    \geometry{verbose,tmargin=1in,bmargin=1in,lmargin=1in,rmargin=1in}
-    %listings configuration
-
-\definecolor{mygreen}{rgb}{0,0.6,0}
-\definecolor{mygray}{rgb}{0.5,0.5,0.5}
-\definecolor{mymauve}{rgb}{0.58,0,0.82}
-	\lstset{
-language=Python,
-commentstyle=\color{mygreen},
-keywordstyle=\color{blue},
-stringstyle=\color{mymauve},
-xleftmargin= 1cm,
-xrightmargin= 1cm,
-showstringspaces=false,
-	   breaklines=true,
-	   texcl=false,
-%	   basicstyle=\ttfamily,
-frame=single,
-frameround=tttt,
-framesep=10pt,
-%framexleftmargin=10pt,
-%framexrightmargin =10pt,
-%frameshape={RYRYNYYYY}{yny}{yny}{RYRYNYYYY} 
-        inputencoding=utf8,
-        extendedchars=true,
-        literate=%
-        {é}{{\'{e}}}1
-        {è}{{\`{e}}}1
-        {ê}{{\^{e}}}1
-        {ë}{{\¨{e}}}1
-        {É}{{\'{E}}}1
-        {Ê}{{\^{E}}}1
-        {û}{{\^{u}}}1
-        {ù}{{\`{u}}}1
-        {à}{{\`{a}}}1
-        {ç}{{\c{c}}}1
-        {Ç}{{\c{C}}}1
-        {î}{{\^{i}}}1
-        {Î}{{\^{I}}}1
-}
-((* endblock commands *))
-
-
-% Display latex
-
-((* block data_latex -*))
-    ((*- if output.latex.startswith('$'): -*)) 
-        ((= Replace $ symbols with more explicit, equation block. =))
-        \begin{equation}
-        ((( output.latex | strip_dollars )))
-        \end{equation}
-    ((*- else -*))
-        ((( output.latex )))
-    ((*- endif *))
-((* endblock data_latex *))
-
-
-
-((* block bibliography *))
-%\bibliographystyle{ieetran}
-%\bibliography{Thesis}
-((* endblock bibliography *))
-
-% Draw a figure using the graphicx package.
-((* macro draw_figure(filename) -*))
-((* set filename = filename | posix_path *))
-((*- block figure scoped -*))
-    \begin{center}
-    \adjustimage{max size={0.6\linewidth}{0.6\paperheight}}{((( filename )))}
-    \end{center}
-%    { \hspace*{\fill} \\}
-((*- endblock figure -*))
-((*- endmacro *))
-
-
-%============================================================
-((= This line selects the cell style. =))
-%((* set cell_style = 'style_bw_python.tplx' *))
-((* set cell_style = 'style_python.tplx' *))
-
-
-
-
diff --git a/src/jupyter_contrib_nbextensions/templates/thmsInNb_book.tplx b/src/jupyter_contrib_nbextensions/templates/thmsInNb_book.tplx
deleted file mode 100644
index 10f29f7..0000000
--- a/src/jupyter_contrib_nbextensions/templates/thmsInNb_book.tplx
+++ /dev/null
@@ -1,171 +0,0 @@
-((*- extends 'report.tplx' -*))
-
-((* block h1 -*))\chapter((* endblock h1 -*))
-((* block h2 -*))\section((* endblock h2 -*))
-((* block h3 -*))\subsection((* endblock h3 -*))
-((* block h4 -*))\subsubsection((* endblock h4 -*))
-((* block h5 -*))\paragraph((* endblock h5 -*))
-
-
-((* block abstract *))
-\tableofcontents
-%~\par
-%\newpage
-((* endblock abstract *))
-
-%or?
-%((* block toc *))\tableofcontents((* endblock toc *))
-
-
-%===============================================================================
-% My custom output style
-%===============================================================================
-% A custom cell style that places code in a simple verbatim and prints "Input #"
-% and "Output #" cell prompts.
-
-((*- block in_prompt -*))
-% No prompt!
-%\textbf{Input \#{}(((cell.prompt_number)))}
-
-((*- endblock in_prompt -*))
-
-((*- block input -*))
-%
-\begin{lstlisting}
-((( cell.source )))
-\end{lstlisting}
-((*- endblock input -*))
-
-% ok
-
-%but may be this?
-
-%((*- block output_prompt -*))
-% No prompt!
-%\textbf{Output \#{}(((cell.prompt_number)))}
-%((*- endblock output_prompt -*))
-
-
-((* block author *))
-\author{J.-F. Bercher}
-((* endblock author *))
-
-((* block title *))
-\title{ }
-((* endblock title *))
-
-((* block packages *))
-((( super() )))
-\usepackage{listings}
-\usepackage{float}   
-((* endblock packages *))
-
-%or -- both work
-((* block header *))
-((( super() )))
-%\usepackage{foo}
-((* endblock *))
-
-
-((* block commands *))
-    % Prevent overflowing lines due to hard-to-break entities
-    \sloppy
-    % Setup hyperref package
-    \hypersetup{
-      breaklinks=true, % so long urls are correctly broken across lines
-	pdftitle={\@title},
-	pdfauthor={\@author},
-	colorlinks=true, %colorise les liens
-	breaklinks=true, %permet le retour à la ligne dans les liens trop longs
-	urlcolor= blue, %couleur des hyperliens
-	linkcolor= blue, %couleur des liens internes
-	citecolor=blue,    %couleur des liens de citations
-	bookmarksopen=false,
-	pdftoolbar=false,
-	pdfmenubar=false,
-%      hidelinks
-      }
-    % Slightly bigger margins than the latex defaults
-    \geometry{verbose,tmargin=1in,bmargin=1in,lmargin=1in,rmargin=1in}
-    %listings configuration
-
-\definecolor{mygreen}{rgb}{0,0.6,0}
-\definecolor{mygray}{rgb}{0.5,0.5,0.5}
-\definecolor{mymauve}{rgb}{0.58,0,0.82}
-	\lstset{
-language=Python,
-commentstyle=\color{mygreen},
-keywordstyle=\color{blue},
-stringstyle=\color{mymauve},
-xleftmargin= 1cm,
-xrightmargin= 1cm,
-showstringspaces=false,
-	   breaklines=true,
-	   texcl=false,
-%	   basicstyle=\ttfamily,
-frame=single,
-frameround=tttt,
-framesep=10pt,
-%framexleftmargin=10pt,
-%framexrightmargin =10pt,
-%frameshape={RYRYNYYYY}{yny}{yny}{RYRYNYYYY} 
-        inputencoding=utf8,
-        extendedchars=true,
-        literate=%
-        {é}{{\'{e}}}1
-        {è}{{\`{e}}}1
-        {ê}{{\^{e}}}1
-        {ë}{{\¨{e}}}1
-        {É}{{\'{E}}}1
-        {Ê}{{\^{E}}}1
-        {û}{{\^{u}}}1
-        {ù}{{\`{u}}}1
-        {à}{{\`{a}}}1
-        {ç}{{\c{c}}}1
-        {Ç}{{\c{C}}}1
-        {î}{{\^{i}}}1
-        {Î}{{\^{I}}}1
-}
-((* endblock commands *))
-
-
-% Display latex
-
-((* block data_latex -*))
-    ((*- if output.latex.startswith('$'): -*)) 
-        ((= Replace $ symbols with more explicit, equation block. =))
-        \begin{equation}
-        ((( output.latex | strip_dollars )))
-        \end{equation}
-    ((*- else -*))
-        ((( output.latex )))
-    ((*- endif *))
-((* endblock data_latex *))
-
-
-
-((* block bibliography *))
-%\bibliographystyle{ieetran}
-%\bibliography{Thesis}
-((* endblock bibliography *))
-
-% Draw a figure using the graphicx package.
-((* macro draw_figure(filename) -*))
-((* set filename = filename | posix_path *))
-((*- block figure scoped -*))
-    \begin{center}
-    \adjustimage{max size={0.6\linewidth}{0.6\paperheight}}{((( filename )))}
-    \end{center}
-%    { \hspace*{\fill} \\}
-((*- endblock figure -*))
-((*- endmacro *))
-
-
-%============================================================
-((= This line selects the cell style. =))
-%((* set cell_style = 'style_bw_python.tplx' *))
-((* set cell_style = 'style_python.tplx' *))
-
-
-
-