diff --git a/ICHLL_Brenon.md b/ICHLL_Brenon.md
index aaf6ff9d22fce5fcb6c695cee5275aff2b450654..3c6426d6704308918b16fe1a585dbd6334105f0b 100644
--- a/ICHLL_Brenon.md
+++ b/ICHLL_Brenon.md
@@ -333,13 +333,55 @@ structures like `<div/>`.
 # A new standard ?
 
 Studying the content of *La Grande Encyclopédie* and considering several
-articles in particular, we identify structures specific to encyclopedias which
-are not covered by the *dictionaries* module presented above. We hence conclude
-that this module is not able to encode arbitrary encyclopedic content and
-propose a new encoding scheme.
+articles in particular, we identify structures which are specific to
+encyclopedias and not compatible with the *dictionaries* module presented above.
+We hence conclude that this module is not able to encode arbitrary encyclopedic
+content and propose a new fully TEI-compliant encoding scheme remaining outside
+of it.
 
 ## Idiosynchrasies of encyclopedias
 
+Browsing through the pages of an encyclopedia reveals a certain number of
+noticeable differences. It is difficult to make a precise list because the
+editorial choices may vary greatly between encyclopedias but we discuss some of
+the most obvious.
+
+### Organized knowledge
+
+The first immediately visible feature that sets encyclopedias apart from
+dictionaris can be found in the *Encyclopédie* as well in *La Grande
+Encyclopédie* is the presence of subject indicators at the begining of articles
+right after the headword which organize them into a domain classification
+system. Those generally cover a broad range of subjects from scientific
+disciplines to litterature, and extending to political subjects and law.
+
+No element in the *dictionaries* module is explicitely designed for the purpose
+of encoding these indicators. As we have seen above, the elements set is geared
+towards the words themselves instead of the concept they represent. The closest
+tool for what we need is found in the `<usg/>` element used with a specific
+`type` attribute set to `dom` for "domain". Indeed several examples from the
+documentation encode subject indicators very similar to the ones found in
+encyclopedias within this element, but the match is not perfect either: all
+appear within one of multiple senses, as if to clarify each context in which the
+word can be used, as expected from the element's name, "usage". In encyclopedia,
+if the domain indicator does in certain cases help to distinguish between
+several entries sharing the same headword, the concept itself has evolved beyond
+this mere distinction. Looking back at the *Encyclopédie*, the adjective
+*raisonné* in the rest of the title directly introduces a notion of structure
+that links back to the "Systême figuré des connoissances humaines". The authors
+have devised a branching system to classify all knowledge, and the occurrence at
+the begining of articles, more than a tool to clear up possible ambiguities also
+points the reader to the correct place in this mind map.
+
+!["Systême figuré des connoissances humaines", the taxonomy at the heart of the Encyclopédie](ressources/arbre.png){width=200px}
+
+The situation regarding subject indicators is hardly better outside of the
+module. The `<domain/>` element despite its name belongs exclusively in the
+header of a document and focuses on the social context of the text, not on the
+knowledge area it covers. The `<interp/>` and `<span/>` elements look like good
+candidates in that . This point, although not the most concerning, still remains
+the hardest to address.
+
 ### The notion of meaning
 
 ### Nested structures
diff --git a/Makefile b/Makefile
index 68cf0b686b8c3b69f0516cbb3081ac5caa3fb9dc..e35e4457e6cd1a8f4615679fe8c73a9d01ca5dda 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-FIGURES = cathète_t9.png dictionaries.png
+FIGURES = arbre.png cathète_t9.png dictionaries.png
 SNIPPETS = $(wildcard snippets/*.md)
 FILE_NAME = ICHLL_Brenon
 DEPEDENCIES = $(FIGURES:%=ressources/%) $(SNIPPETS:%.md=%.png)
diff --git a/ressources/arbre.png b/ressources/arbre.png
new file mode 100644
index 0000000000000000000000000000000000000000..ccea6bb56e48dae35daca965cc43992a52506b05
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