ge in the same year, and married Susan, daughter of Robert Moline
of Greenwich. He continued to reside in Cambridge and to hold the
professorship till his death, which occurred on the 26th of January
1895. From the time he went first to Cambridge till his death he was
constantly engaged in mathematical investigation. The number of his
papers and memoirs, some of them of considerable length, exceeds 800;
they were published, at the time they were composed, in various
scientific journals in Europe and America, and are now embodied, through
the enterprise of the syndics of the Cambridge University Press, in
thirteen large quarto volumes. These form an enduring monument to his
fame. He wrote upon nearly every subject of pure mathematics, and also
upon theoretical dynamics and spherical and physical astronomy. He was
quite as much a geometrician as he was an analyst. Among his most
remarkable works may be mentioned his ten memoirs on quantics, commenced
in 1854 and completed in 1878; his creation of the theory of matrices;
his researches on the theory of groups; his memoir on abstract geometry,
a subject which he created; his introduction into geometry of the
"absolute"; his researches on the higher singularities of curves and
surfaces; the classification of cubic curves; additions to the theories
of rational transformation and correspondence; the theory of the
twenty-seven lines that lie on a cubic surface; the theory of elliptic
functions; the attraction of ellipsoids; the British Association
Reports, 1857 and 1862, on recent progress in general and special
theoretical dynamics, and on the secular acceleration of the moon's mean
motion. He is justly regarded as one of the greatest of mathematicians.
Competent judges have compared him to Leonhard Euler for his range,
analytical power and introduction of new and fertile theories. He was
the recipient of nearly every academic distinction that can be conferred
upon an eminent man of science. Amongst others may be noted honorary
degrees by the universities of Oxford, Dublin, Edinburgh, Gottingen,
Heidelberg, Leiden and Bologna. He was fellow or foreign corresponding
member of the French Institute, the academies of Berlin, Gottingen, St
Petersburg, Milan, Rome, Leiden, Upsala and Hungary; and he was
nominated an officer of the Legion of Honour by President Carnot. At
various times he was president of the Cambridge Philosophical Society,
of the London Mathematical Society and of th