George Sand, who was a firm believer in the doctrine of heredity, devotes a whole volume of her autobiography (Histoire de ma vie, 1857 seq.) to the elaboration of this strange pedigree.
Water traffic, which is chiefly in heavy merchandise, as coal, building materials, and agriculture and food produce, more than doubled in volume between 1881 and 1905.
Fortunately, however, Robert Napier had transcribed his father's manuscript De Arte Logistica, and the copy escaped the fate of the originals in the manner explained in the following note, written in the volume containing them by Francis, seventh Lord Napier: "John Napier of Merchiston, inventor of the logarithms, left his manuscripts to his son Robert, who appears to have caused the following pages to have been written out fair from his father's notes, for Mr Briggs, professor of geometry at Oxford.
Recovery required years, although made easier by the sound and steady development of the pastoral and agricultural industries, which were slightly affected by the crisis; and the steadily increasing volume of exports, mainly foodstuffs and other staples, saved the situation.