This photo portrait was taken on 6 June 1887 (the day after
Wallace gave his 'If a Man Die...' lecture) at the studio of the famous photographer
Isaiah West Taber, in San Francisco. It was published in the 18 June 1887 issue
of the Mining and Scientific Press, on page 397, from a copy of which
this image was scanned (thus the low quality). I do not know whether an original
print or negative exists. copyright 2009 Charles H. Smith.