Sierra Leone 1938 seamen trafficking; Senegal 1962 yamba study; log 1920-ban dead end

@@ -16,5 +16,5 @@ Generated from [books.yaml](books.yaml) and the local `books/` inventory. Refres
 | [Reefer Wellness: Understanding Cannabis Science, Culture, and Medicine](#kirk-reefer-wellness-2025) | verified | 0 / 8 | 0 | 8 | 0 | 0 | matches recorded hash |
 | [The Emperor Wears No Clothes](#herer-emperor-wears-no-clothes-undated) | verified | 1 / 16 | 1 | 14 | 1 | 0 | matches recorded hash |
-| [The African Roots of Marijuana](#duvall-african-roots-marijuana-2019) | verified | 4 / 10 | 3 | 3 | 36 | 4 | matches recorded hash |
+| [The African Roots of Marijuana](#duvall-african-roots-marijuana-2019) | verified | 4 / 10 | 3 | 3 | 38 | 4 | matches recorded hash |
 | [Cannabis: Evolution and Ethnobotany](#cannabis-evolution-and-ethnobotany) | awaiting_verification | not indexed | 0 | 0 | 0 | 0 | matches recorded hash |
 | [Commodifying Cannabis: A Cultural History of a Complex Plant in the Atlantic World](#commodifying-cannabis-a-cultural-history-of-a-complex-plant-in-the-atlantic-world) | verified | 0 / 9 | 2 | 7 | 0 | 0 | matches recorded hash |
@@ -269,5 +269,5 @@ Missing local books are expected on other checkouts. A changed hash requires edi
 | 5. A Convenient Crop | read | pp. 95–111; selected notes pp. 271–276 (notes 8–107) | culture/traditions/the-heddawa.md; culture/traditions/kif-and-the-sebsi.md; culture/language/chamba.md | Remaining notes not read. The 1921 resin-production reference concerns Algeria, not a verified Moroccan start date. Do not identify the men in figure 5.1 as Heddawa; use the separately attributed 1955 gallery. Treat origin legends and outsider judgments as such. |
 | 6. Society Overturned: The Bena Riamba | read | pp. 112–124; chapter notes 280–286 | culture/traditions/bena-riamba.md; culture/people/sangula-meta.md; articles/dr-congo-bena-riamba-1881.md; changes.yaml#dr-congo-bena-riamba-1881 | Primary accounts conflict about names, kinship and succession. Do not turn approximate reconstruction into precisely dated events. Notes 21 and 35 qualify translations and kinship. |
-| 7. Cannabis Crosses the Atlantic | selected_pages_read | pp. 125–139, 146–148; selected notes pp. 291–293 (notes 60–104) | culture/language/maconha.md; culture/language/diamba.md; articles/sierra-leone-cannabis-long-in-use-1851.md; changes.yaml#sierra-leone-cannabis-long-in-use-1851; articles/sierra-leone-dangerous-drugs-ordinance-1926.md | Resume p. 140; remaining body and notes unread. Maconha is placed within a wider Bantu vocabulary with shifting botanical meanings. Rio 1830 penalties conflict with existing site account: verify original before revision. Clarke’s 1851 primary report pp. 9–11 separately read and checked. |
+| 7. Cannabis Crosses the Atlantic | selected_pages_read | pp. 125–139, 146–151; selected notes pp. 291–293 (notes 60–104) and p. 298 (notes 194–200) | culture/language/maconha.md; culture/language/diamba.md; articles/sierra-leone-cannabis-long-in-use-1851.md; changes.yaml#sierra-leone-cannabis-long-in-use-1851; articles/sierra-leone-dangerous-drugs-ordinance-1926.md; changes.yaml#sierra-leone-seamen-regional-trafficking-1938; changes.yaml#senegal-yamba-clinical-study-1962 | Resume p. 140; remaining body and notes unread. Maconha is placed within a wider Bantu vocabulary with shifting botanical meanings. Rio 1830 penalties conflict with existing site account: verify original before revision. Clarke’s 1851 primary report pp. 9–11 separately read and checked. |
 | 8. Working under the Influence | indexed_only | — | — | — |
 | 9. Buying and Banning | selected_pages_read | pp. note 95 (p. 319) and the Tunisian passage it annotates; pp. 192–195 (Maghreb monopolies); AEF passage pp. 198–200 with notes 135–137 and ch. 9 note 23 (29 August 1926 decree, JORF 58(207):10017) | changes.yaml#chad-french-equatorial-africa-1926; changes.yaml#central-african-republic-french-equatorial-africa-1926; changes.yaml#congo-french-equatorial-africa-1926; changes.yaml#gabon-french-equatorial-africa-1926; articles/chad-french-equatorial-africa-1926.md; changes.yaml#malta-hashish-to-tunisia-1895; culture/language/qanneb.md; changes.yaml#morocco-hassan-kif-ban-1888; changes.yaml#morocco-monopolies-restored-1896; changes.yaml#morocco-kif-state-farm-1914; changes.yaml#morocco-hashish-import-ban-1922; changes.yaml#tunisia-cultivation-ban-1875; changes.yaml#tunisia-takrouri-monopoly-1890; articles/morocco-kif-ban-1956.md; articles/tunisia-takrouri-ban-1953.md; articles/morocco-hassan-kif-ban-1888.md; articles/morocco-monopolies-restored-1896.md | — |

@@ -1385,5 +1385,5 @@ books:
         pdf_start: 129
         status: selected_pages_read
-        pages_reviewed: 125–139, 146–148; selected notes pp. 291–293 (notes 60–104)
+        pages_reviewed: 125–139, 146–151; selected notes pp. 291–293 (notes 60–104) and p. 298 (notes 194–200)
         applied_to:
           - culture/language/maconha.md
@@ -1392,4 +1392,6 @@ books:
           - changes.yaml#sierra-leone-cannabis-long-in-use-1851
           - articles/sierra-leone-dangerous-drugs-ordinance-1926.md
+          - changes.yaml#sierra-leone-seamen-regional-trafficking-1938
+          - changes.yaml#senegal-yamba-clinical-study-1962
         follow_up: >-
           Resume p. 140; remaining body and notes unread. Maconha is placed within a wider Bantu vocabulary with

@@ -92,2 +92,13 @@
 - Blocked again: ALEX bot-wall ("Sicherheitsüberprüfung"), RIS historic
   PDF 404, no secondary with the domestic rules' content. Entry unchanged.
+
+## Sierra Leone 1920 ban claim (decided: keep 1926, do not add)
+- Wikipedia claims cannabis was first banned in Sierra Leone in 1920 as an addendum to the
+  1913 Opium Act, citing Akyeampong/Hill/Kleinman (2015). The proximate source is
+  Akyeampong, "Diaspora and Drug Trafficking in West Africa" (African Affairs 104/416,
+  2005, p. 432) — but Duvall (African Roots, ch. 9 note 52, p. 316) notes Akyeampong cites
+  no source for the 1920 listing and states "I have not identified a 1920 listing."
+- Duvall's archival position: Sierra Leone's 1926 Dangerous Drugs Ordinance No. 10 is the
+  control start ("Sailors became drug traffickers once colonial prohibitions started in
+  1926", ch. 7 with note 195). Keep the 1926 first-ban entry. Revisit only if the 1913
+  Opium Ordinance or a 1920 amendment text surfaces.