English astronomer and scientific writer, born on the 10th of February 1842, and died in London on the 20th of January 1907. She wrote extensively on various scientific subjects, but devoted herself more especially to astronomy. Though not a practical astronomer in the ordinary sense, she possessed remarkable skill in collating, interpreting and summarizing the results of astronomical research, and as a historian her work has an important place in scientific literature. Her chief works were A Popular History of Astronomy during the 19th Century, first edition 1885, fourth 1902; The System of the Stars, first edition 1890, second 1905; and Problems in Astrophysics, 1903. In addition she wrote Familiar Studies in Homer (1892), The Herschels and Modern Astronomy (1895), Modern Cosmogonies (1906), and many valuable articles, such as her contributions to the Encyclopædia Britannica. In 1903 she was elected an honorary member of the Royal Astronomical Society. (See authored articles: Tycho Brahe, Cassini, Nicolaus Copernicus, Jean Baptiste Joseph Delambre, Thomas Dick, Giovanni Battista Donati, Johann Franz Encke, John Flamsteed, Galileo Galilei, Edmund Halley, Peter Andreas Hansen, John F. W. Herschel, William Herschel, Johannes Hevelius, Hipparchus, Jeremiah Horrocks, Sir William Huggins, Alexander von Humboldt, Christiaan Huygens, Johannes Kepler, Joseph Louis Lagrange, Pierre-Simon Laplace, Urbain Jean Joseph Leverrier, Joseph Nicolas de L’Isle, Nevil Maskelyne, Tobias Mayer, Amédée Ernest Barthélémy Mouchez, Joannes Regiomontanus, Charles Piazzi Smyth, Edward James Stone.)