These volumes contain over 1,800 letters, most never before published, and some sixty earlier letters that have come to light since the publication of the first two volumes of correspondence. The letters have been assembled from widely dispersed collections in the libraries of fifty-eight institutions and of some thirty private collections in Britain and in other countries of the Commonwealth, Europe, and North America. In addition, many personal letters of which no originals survived have been located in contemporary periodicals or biographies of Mill's correspondence.
One of the English-speaking world’s most influential philosophers, John Stuart Mill (1806-1873) wrote on countless topics, including logic, politics, women’s rights, legal history, medicine, and the philosophy of science.
Francis E. Mineka (1907-1985) was a professor of English at Cornell University.
Dwight N. Lindley (1952-1986) was a professor of English at Hamilton College.