THOREAU, Henry David (1817-1864). A Week on the Concord and Merrimack Rivers. Boston and Cambridge, 1849. Modern morocco. BAL 20104. -- Excursions. Boston, 1863. BAL 20111. -- The Maine Woods. Boston, 1864. BAL 20113. -- A Yankee in Canada. Boston, 1866. BAL 20117. -- Another copy. Together 5 volumes, 8o, original cloth except where noted, all FIRST EDITIONS, condition varies. [With:] 13 other later and posthumous editions. (18)