CREMONA, LUIGI (183o-1903 ), Italian mathematician, was born at Pavia, and fought as a volunteer in the abortive north Italian rising of 1848-49. After studying under Francesco Brioschi at the University of Pavia he became elementary mathematical master at the gymnasium and lyceum of Cremona, and after wards at Milan. In 186o he became professor of higher geometry at Bologna, and in 1866 professor of higher geometry and graph ical statics at the higher technical college of Milan. In 1873 he became professor of higher mathematics at Rome, and organized the college of engineering. Cremona's reputation was now Euro pean. In 1879 he became a corresponding member of the British Royal Society, and a senator of the kingdom of Italy. His life was devoted to the reform of higher mathematical teaching in Italy. Cremona was a prolific contributor to mathematical jour nals of Italy and Europe, and some of his books have been trans lated into English; e.g., his manual on Graphical Statics and his Elements of Projective Geometry (tr. C. Leudesdorf) . His repu tation mainly rests on his Introduzione ad una teoria geometrica delle curve piane, which proclaims him a follower of the Stein erian or synthetical school of geometricians.