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Voyager Rare Books Maps & Prints » Products » Curiosities

Curiosities

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  • Massive Ducretet Gas Discharge Tube – Paris c1890

    Massive Ducretet Gas Discharge Tube – Paris c1890

    This massive discharge tube was made by Eugene Ducretet (1844-1915) a leading French scientific instrument maker who opened his first shop retailing unusual scientific instruments in Paris in 1864. This instrument is engraved with his name E Ducretet A Paris to the top tap.

    It is one of the largest, heaviest and most unconventional discharge tubes we have seen. Standing 60 cms high an in pretty good condition for its age – we have left the brass work as we found it – the threads to the vacuum inlet work albeit stiff and the thread to the to mount are in very good condition. The extremely thick glass tube is at a slight angle but the seals appear intact. A very rare scientific collectable from the early days of gas discharge experiments.

    Flash Gas Tube from 19thC Paris

    $340.00

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  • Thin Geological Section Microscope Slides -1913 – Set of Five

    Thin Geological Section Microscope Slides -1913 – Set of Five

    A group of five thin section slides from the UK, India and Iceland all nice samples, well labelled and in nice condition

    Obsidian with spherulites from Iceland
    (Spherulites are small rounded bodies that occur in vitreous igneous rocks such as obsidian)

    Chert – Blue Limestone – Somerset
    (This unusual blue coloured limestone is from a Lias Quarry in Shepton Mallet)

    Chloritic Marl – Compton Abbas – Dorset
    (Fossil containing bedrock to the chalk of southern England)

    Anorthite from Salem South India
    (A Gneiss rock structure from the Sittampundi Complex at Salem near Madras)

    Augen Gneiss from Strahnaver, Sutherland, Scotland
    (A Metamorphic rock which is clotted with flesh coloured feldspar “augen”)

    A very good selection

    $90.00

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