New York: D. Appleton and Co, 1871, 1872. First American Edition of "Descent" (with first use of the word "evolution" by Darwin), later issue without errata; Fifth Edition of "Origin.. 203 x 121 mm. (8 x 5"). All volumes with ads at the end. Two separately published works in three volumes.. Publisher's brown buckram, covers with black-stamped frames, flat spines with gilt titling, "Origin" with a leaves uncut in a couple of places. Descent with 76 illustrations in the text; "Origin" with folding diagram. Front free endpaper of all three volumes with pencilled signature of L. G. Andrews. Freeman 942, 394. ◆Tiny tear to head of one spine, one corner slightly bumped, extremities lightly rubbed, a little chafing to a couple of boards, one page with faint printing smudges, other trivial internal imperfections, but FINE COPIES, internally clean and fresh, in sound bindings with few signs of use. The first edition of "Descent of Man" is especially notable for Darwin's first…