8vo. 7 heliotype plates with Roman numerals [Norman first issue], 3 folding, numerous woodblocks in text; 4pp. advertisements at end, dated November 1872. Original green cloth, covers with blind frame, gilt-stamped spine (front joint starting at introduction, spine slightly darkened).

FIRST EDITION, FIRST ISSUE, with last signatures 2B2 2C3 with 2B1 and 2C1 signed. Norman disputes Freeman's suggestion that the issue with the Arabic numerals was the first, "as it is most probable that Darwin would have presented copies from the earlier printing." The work contains studies of facial and other types of expression in man and mammals, and their relationship to various emotions. "This is an important member of the evolutionary set, and it was written, in part at least, as a confutation of the idea that the facial muscles of expression in man were a special endowment" (Freeman). Freeman 1141; Garrison & Morton 4975; Norman 600.