In an edition recently issued by a New York publisher, the two manifestoes on the franco-prussian War are omitted, and the English abridgment of Engels' intro duction is still further abridged to make it conform to the absence of the omitted documents. Deeming it but just to both Marx and Engels that their work should be given to the public in an unabridged form, we present in this volume the first complete edition of the essays by Marx and the introduction by Engels published in the English language. The only liberty we have taken with the text is the addition of chapter titles to The Civil War in France.