Louis Agassiz, his life and correspondence,
ed. by Elizabeth Cary Agassiz.
Agassiz, E. Cabot Cary. (1886). Louis Agassiz, his life and correspondence. Boston: Mifflin and company.
Agassiz, Elizabeth Cabot Cary, 1822-1907. Louis Agassiz, His Life And Correspondence. Boston: Mifflin and company, 1886.
Warning: These citations may not always be complete (especially for serials).