. Letters of Henry Adams
, ed. Worthington C. Ford, Boston and New York, 1930–1938, 1:156–157; see also p.154.
C. F. Adams encouraged Henry in this undertaking but warned him, “I have been carefully
over my mother's papers since my return, and have reduced their volume very essentially,
perhaps rather too much for your purpose” (24 March 1869, Adams Papers