1825 "The Magnetic Properties of the Violet Rays of the Solar Spectrum" 1830 "The Mechanisms of the Heavens" 1832 "A Preliminary Dissertation on the Mechanisms of the Heavens" 1834 "On the Connection of the Physical Sciences" 1848 "Physical Geography" 1869 "Molecular and Microscopic Science" 1874 "Personal recollections, from early life to old age, of Mary Somerville"