Ogden Nicholas Rood.

Gray and his wife, Jane Loring Gray, planned to spend a month in the Yosemite Valley, California (J. L. Gray ed. 1893, 2: 625).

A photograph of a drawing based on an oil painting by William Holbrook Beard had been exhibited in the Century Association in New York on 3 June 1871. Beard painted the original work, called ‘The youthful Darwin expounding his theories’ and now in the American Museum of Natural History, in 1859 as a response to Origin (Peck 1994, p. 699). Beard specialised in satirical paintings substituting animals for humans; ‘The youthful Darwin’ depicts a young humanoid with a vestigial tail showing two older apes a series of creatures from fish to amphibian (see plate in Correspondence vol. 20). The enclosure to Rood’s letter has not been found, and may have been a copy either of the drawing, or of the photograph (see also letter to Asa Gray, 8 July [1872]).