Includes bibliographical references (pages 245-263) and index.

The earth and stars -- Mary Putnam Jacobi (1842) -- Maria Mitchell (1818) -- Annie Jump Cannon (1863) -- Inge Lehmann (1888) -- Marie Tharp (1920) -- Yvonne Brill (1924) -- Sally Ride (1951) -- Medicine -- Anna Williams (1863) -- Alice Ball (1892) -- Gerti Radnitz Cori (1896) -- Helen Brooke Taussing (1898) -- Elsie Widdowson (1906) -- Virginia Apgar (1909) -- Dorothy Crowfoot Hodgkin (1910) -- Gertrude Elion (1918) -- Jane C. wright (1919) -- Biology and the environment -- Maria Sibylla Merian (1647) -- Jeanne Villepreux-Power (1794) -- Mary Anning (1799) -- Ellen Swallow Richards (1842) -- Alice Hamilton (1869) -- Alice Evans (1881) -- Tilly Edinger (1897) -- Rachel Carson (1907) -- Ruth Patrick (1907) -- Genetics and development -- Nettie Stevens (1861) -- Hilde Mangold (1898) -- Charlotte Auerbach (1899) -- Barbara McClintock (1902) -- Salome G. Waelsch (1907) -- Rita Levi-Montalcini (1909) -- Rosalind Franklin (1920) -- Anne McLaren (1927) -- Lynn Margulis (1938) -- Physics -- Emilie du Chatelet (1706) -- Lise Meitner (1878) -- Irene Juliot-Curie (1897) -- Maria Goeppert Mayer (1906) -- Marguerite Perey (1909) -- Chien-Shiung Wu (1912) -- Rosalyn Yalow (1921) -- Math and technology -- Maria Gaetana Agnesi (1718) -- Ada Lovelace (1815) -- Florence Nightingale (1820) -- Sophie Kowalevski (1850) -- Emmy Noether (1882) -- Mary Cartwright (1900) -- Grace Murray Hopper (1906) -- Invention -- Hertha Ayrton (1854) -- Hedy Lamarr (1913) -- Ruth Benerito (1916) -- Stephanie Kwolek (1923).