This volume presents eighty-nine letters exchanged between John Stuart Mill and Auguste Comte between 1841 and 1847. They address important issues of the mid-nineteenth century in philosophy, science, economics, and politics. Cumulatively, these letters provide a humanistic view of Western Europe and its social problems. They add valuable perspective to what we know about the work of Mill and Comte, in a critical period of English and French thought. The correspondence begins with an admiring letter from Mill who considers himself a positivist at the tune and writes to Comte as to an elder colleague. A close friendship developed, in the course of which they discussed matters of common concern. Their understanding extends to personal experiences, including their respective mental crises at an early age. The opinions expressed about their contemporaries are significant and include comments on Thomas Carlyle, John and Sarah Austin, and Alexander Bain, on philosophers and major authors in France, Germany, and Italy. Mill and Comte eventually encountered issues on which they could not come to consensus, especially the equality of women. While Mill was an ardent defender of women's rights, Comte supported the traditional hierarchy that endowed men with social and political superiority. According to Jerome H. Buckley, Gurner Professor of English Literature Emeritus at Harvard University, "The correspondence of Mill and Comte, now available for the first time in English translation, is a remarkable intellectual exchange, a dialogue of real significance in the history of ideas." This volume will be of great interest to philosophers, historians, economists, women's studies scholars, and political scientists.

These volumes of Mill's letters have been awaited eagerly by all scholars in the field of nineteenth-century studies. They inaugurate most auspiciously the edition of the Collected Works of John Stuart Mill planned and directed by an editorial committee appointed from the Faculty of Arts and Science of the University of Toronto and from the University of Toronto Press. In this collection of 537 letters and excerpts of letters are included all the personal letters available. It contains 238 hitherto unpublished letters and 72 letters with previously unpublished passages. Letters previously published have been recollated whenever possible. All are meticulously edited and annotated.

The Earlier Letters of John Stuart Mill, published in two volumes in 1963, were well received by critics and scholars alike. The publication of these four volumes of later letters completes this edition of Mill's personal correspondence. 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.

Acknowledged as the definitive edition of J.S. Mill, the complete set of volumes are now again available containing extensive notes, a new introduction and an index.