THE death of Nils Christoffer Dunér has deprived Sweden of one of her most distinguished men of science, and astronomy of an active and devoted student. Born on May 21, 1839, Dunér entered the University of Lund in 1855, and took his doctor's degree in 1862. He became a member of the staff of the Lund Observatory in 1864, and occupied that position until his appointment, in 1888, as Professor in the University and Director. of the Observatory of Upsala. He died at Stockholm on November io, after a brief illness following his return from a journey to observe the solar eclipse of last August.