M0001296: Line engraving of tree-shaped diagram through eight geological periods (broadly categorised as the "Tertiary" and "Quaternary" periods)

Date:
20 September 1930
Reference:
WT/D/1/20/1/12/9

Licence: In copyright

Credit: M0001296: Line engraving of tree-shaped diagram through eight geological periods (broadly categorised as the "Tertiary" and "Quaternary" periods). Source: Wellcome Collection.