xcreted by the kidneys as
various substances, including campho-glycuric acid (Schmiedeberg). In
large doses it causes marked nervous symptoms, exhilaration being
followed by abdominal pain, violent epileptiform convulsions, coma and
death. Its internal uses are in hysteria, and in such conditions as
diarrhoea, dysentery and cholera. It is a popular remedy for "cold in
the head," but it is not to be relied upon as a prophylactic against
infection either by an ordinary cold or true influenza.
CAMPHUYSEN, DIRK RAFELSZ (1586-1627), Dutch painter, poet and
theologian, was the son of a surgeon at Gorcum. As he manifested great
artistic talent, his brother, in whose charge he was left on the death
of his parents, placed him under the painter Govaerts. But at that time
there was intense interest in theology; and Camphuysen, sharing in the
prevailing enthusiasm, deserted the pursuit of art, to become first a
private tutor and afterwards minister of Vleuten near Utrecht(1616). As,
however, he had embraced the doctrines of Arminius with fervour, he was
deprived of this post and driven into exile (1619). His chief solace was
poetry; and he has left a translation of the Psalms, and a number of
short pieces, remarkable for their freshness and depth of poetic
feeling. He is also the author of several theological works of fair
merit, among which is a _Compendium Doctrinae Sociniorum_; but his fame
chiefly rests on his pictures, which, like his poems, are mostly small,
but of great beauty; the colouring, though thin, is pure; the
composition and pencilling are exquisite, and the perspective above
criticism. The best of his works are his sunset and moonlight scenes and
his views of the Rhine and other rivers. The close of his life was spent
at Dokkum. His nephew Raphael (b. 1598) is by some considered to have
been the author of several of the works ascribed to him; and his son
Govaert (1624-1674), a follower or imitator of Paul Potter, is similarly
credited.
CAMPI, GIULIO (1500-1572), the founder of a school of Italian painters,
was born at Cremona. He was son of a painter, Galeazzo Campi
(1475-1536), under whom he took his first lessons in art. He was then
taught by Giulio Romano; and he made a special study of Titian,
Correggio and Raphael. His works are remarkable for their correctness,
vigour and loftiness of style. They are very numerous, and the church of
St Margaret in his native town owes all its paintings to his h
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