ough Dr Clifford and
his followers continued to protest against their treatment.

CLIFFORD, WILLIAM KINGDON (1845-1879), English mathematician and
philosopher, was born on the 4th of May 1845 at Exeter, where his father
was a prominent citizen. He was educated at a private school in his
native town, at King's College, London, and at Trinity College,
Cambridge, where he was elected fellow in 1868, after being second
wrangler in 1867 and second Smith's prizeman. In 1871 he was appointed
professor of mathematics at University College, London, and in 1874
became fellow of the Royal Society. In 1875 he married Lucy, daughter of
John Lane of Barbados. In 1876 Clifford, a man of high-strung and
athletic, but not robust, physique, began to fall into ill-health, and
after two voyages to the South, died during the third of pulmonary
consumption at Madeira, on the 3rd of March 1879, leaving his widow with
two daughters. Mrs W. K. Clifford soon earned for herself a prominent
place in English literary life as a novelist, and later as a dramatist.
Her best-known story, _Mrs Keith's Crime_ (1885), was followed by
several other volumes, the best of which is _Aunt Anne_ (1893); and the
literary talent in the family was inherited by her daughter Ethel (Mrs
Fisher Dilke), a writer of some charming verse.

Owing to his early death, Professor Clifford's abilities and
achievements cannot be fairly judged without reference to the opinion
formed of him by his contemporaries. He impressed every one as a man of
extraordinary acuteness and originality; and these solid gifts were set
off to the highest advantage by quickness of thought and speech, a lucid
style, wit and poetic fancy, and a social warmth which made him
delightful as a friend and companion. His powers as a mathematician were
of the highest order. It harmonizes with the concrete visualizing turn
of his mind that, to quote Professor Henry Smith, "Clifford was above
all and before all a geometer." In this he was an innovator against the
excessively analytic tendency of Cambridge mathematicians. In his theory
of graphs, or geometrical representations of algebraic functions, there
are valuable suggestions which have been worked out by others. He was
much interested, too, in universal algebra, non-Euclidean geometry and
elliptic functions, his papers "Preliminary Sketch of Bi-quaternions"
(1873) and "On the Canonical Form and Dissection of a Riemann's Surface"
(1877) ranking as cla