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Slide set: Etude des terrains: ère primaire (lecture: Les Fils d'Émile Deyrolle, 16 slides, in/before 1912)

Known references to this set (listed below slide images)
Eruptions primaires, granite porphyroïde du Ménage de la Vierge, au Huelgoat (Finistère)
Rochers de schistes primaires à nodules de quartz, St-Gilles-sur-Vie
Lucerna ID  3011402

Record created by Richard Crangle. Last updated 3 November 2020

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  Lucerna Magic Lantern Web Resource,, item 3011402. Accessed 6 December 2021.

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