Rio de Janeiro beginning in the war's final week. In 1867, she began a correspondence with Arnold Guyot, a geologist and meteorologist. She also helped organize and manage the next expedition (the Hassler Expedition in 1871-1872), which was the first important U.S. government marine exploration, and made transcripts. After her husband's death in 1873, she published several books on natural history for which she had conducted research for many years. Agassiz contributed to the founding of the coeducational Anderson School of Natural History. She was (from 1869) one of the first women members of the American Philosophical Society (with Mary Fairfax Somerville and Maria Mitchell); she became a member on October 15. Society for the Private Collegiate Instruction for Women In 1879, she was one of seven female managing directors of the Society for the Private Collegiate Instruction for Women (Harvard Annex). This provided qualified women who intended to pursue an advancement in their education in Cambridge with the opportunity to have private tuition from professors at Harvard College. Agassiz was essential in ensuring that the "Harvard Annex" for women's education was transformed in 1894 from Harvard University into Radcliffe College. From 1894 to 1900, this college was under their direction and from 1900 to 1903 she was honorary president. With her tact and her fundraising skills she promoted the college and contributed significantly to its continuity. Agassiz became a member of the Ladies' Visiting Committee for the Kindergarten for the Blind, under the Perkins Institution for the Blind. She acted as treasurer for the Cambridge branch of the committee until an illness in 1904. Research and published works Her research can be studied through her published books in addition to her series of diary entries depicting her global ventures. Her publications include A First Lesson in Natural History (1859) and Seaside Studies in Natural History (1865), in which she was assisted by her stepson, Alexander Emanuel Agassiz. Elizabeth Agassiz originally published A First Lesson under the pseudonym Actaea. Additionally, Elizabeth Agassiz co-authored A Journey in Brazil (1868) and edited and published Louis Agassiz: His Life and Correspondence in 1885. A biography of Elizabeth Cabot Agassiz was later written by her sister, Emma F. Cary, and Lucy Allen Paton, published in the spring of 1917 with the assistance of the Council of Radcliffe College. Personal life Following the marriage of her older sister Mary to Harvard Professor Cornelius Conway Felton