Item Description: | Reprint of A study of the smiling and laughing of infants in the first year of life, by R. W. Washburn, first published 1929; of The smiling response: a contribution to the ontogenesis of social relations, by R. A. Spitz, first published 1946; and of Expression of the emotions in a blind-deaf child, F. L. Goodenough, first published 1932. |