NY: Sheldon, 1867. New American edn. from the revised 3rd London edn. With notes an. 8vo, Pp. 570. Contemp. cloth worn at the top of the spine, a VG tight copy. Item #7381
Somerville (1780-1872) was a self taught mathematician born in Scotland. Her paper on "The Magnetic Properties of the Violet Rays of the Solar Spectrum" was delivered to the Royal Society in 1826. The paper was later refuted, but gained her recognition. Her Physical Geography, on which she worked for many years, was issued in 1869 and went through 7 editions.