acles are capable of proof by
testimony, and that the miracles of Christianity are sufficiently
attested. There is no contradiction, he argues, as Hume said there was,
between what we know by testimony and the evidence upon which a law of
nature is based; they are of a different description indeed, but we can
without inconsistency believe that both are true. The _Dissertation_ is
not a complete treatise upon miracles, but with all deductions it was
and still is a valuable contribution to theological literature. In 1771
Campbell was elected professor of theology at Marischal College, and
resigned his city charge, although he still preached as minister of
Greyfriars, a duty then attached to the chair. His _Philosophy of
Rhetoric_, planned at Banchory Ternan years before, appeared in 1776,
and at once took a high place among books on the subject. In 1778 his
last and in some respects his greatest work appeared, _A New Translation
of the Gospels_. The critical and explanatory notes which accompanied it
gave the book a high value.

In 1795 he was compelled by increasing weakness to resign the offices he
held in Marischal College, and on his retirement he received a pension
of L300 from the king. He died on the 31st of March 1796.

His _Lectures on Ecclesiastical History_ were published after his
death with a biographical notice by G.S. Keith; there is a uniform
edition of his works in 6 vols.

CAMPBELL, JOHN (1708-1775), Scottish author, was born at Edinburgh on
the 8th of March 1708. Being designed for the legal profession, he was
sent to Windsor, and apprenticed to an attorney; but his tastes soon led
him to abandon the study of law and to devote himself entirely to
literature. In 1736 he published the _Military History of Prince Eugene
and the Duke of Marlborough_, and soon after contributed several
important articles to the _Ancient Universal History_. In 1742 and 1744
appeared the _Lives of the British Admirals_, in 4 vols., a popular work
which has been continued by other authors. Besides contributing to the
_Biographia Britannica_ and Dodsley's _Preceptor_, he published a work
on _The Present State of Europe_, onsisting of a series of papers which
had appeared in the _Museum_. He also wrote the histories of the
Portuguese, Dutch, Spanish, French, Swedish, Danish and Ostend
settlements in the East Indies, and the histories of Spain, Portugal,
Algarve, Navarre and France, from the time of Clovis till 1656,