January, 1888. The unnamed author of the Magnetic Notebooks discovers the relationship between magnetism, statistics and geophysics applied to economic cycles.
February, 1890. After his death, his few possessions are sold. Among them, in a wooden box, the Magnetic Notebooks.
helobiae 
Very Intriquing.
Lovely box…I agree very curious…I was trying to understand Pi the other evening. Mathematics are not my forte. 🙂