journeyed over Europe, to examine mines and smelting works. He
published, in 1716, his Daedalus Hyperboreus, and, from this time, for
the next thirty years, was employed in the composition and publication
of his scientific works. With the like force, he threw himself into
theology. In 1743, when he was fifty-four years old, what is called
his illumination began. All his metallurgy, and transportation of ships
overland, was absorbed into this ecstasy. He ceased to publish any
more scientific books, withdrew from his practical labors, and devoted
himself to the writing and publication of his voluminous theological
works, which were printed at his own expense, or at that of the Duke
of Brunswick, or other prince, at Dresden, Liepsic, London, or
Amsterdam. Later, he resigned his office of Assessor: the salary
attached to this office continued to be paid to him during his life.
His duties had brought him into intimate acquaintance with King Charles
XII., by whom he was much consulted and honored. The like favor was
continued to him by his successor. At the Diet of 1751, Count Hopken
says, the most solid memorials on finance were from his pen. In Sweden,
he appears to have attracted a marked regard. His rare science and
practical skill, and the added fame of second sight and extraordinary
religious knowledge and gifts, drew to him queens, nobles, clergy,
shipmasters, and people about the ports through which he was wont to
pass in his many voyages. The clergy interfered a little with the
importation and publication of his religious works; but he seems to
have kept the friendship of men in power. He was never married. He had
great modesty and gentleness of bearing. His habits were simple; he
lived on bread, milk, and vegetables; and he lived in a house situated
in a large garden; he went several times to England, where he does not
seem to have attracted any attention whatever from the learned or the
eminent; and died at London, March 29, 1772, of apoplexy, in his
eighty-fifth year. He is described, when in London, as a man of quiet,