2 o’clock at night. 16 Aug. 1867. Dear Fred,
Just finished correcting the last sheet (49th) of the book. The appendix – value-form – printed in small type, comprises 1¼ sheets. Preface likewise corrected yesterday and sent back. So this volume is finished. I owe it solely to you that this was possible! Without your sacrifice for me I could never have accomplished the enormous labours for the 3 volumes. I embrace you, full of thanks! Enclosed 2 clean proof sheets. Received the £15 with best thanks. Salut, my dear, beloved friend!
Yours,
K. Marx
I shall not need the clean proofs back until the book is entirely out.