Wallace and Bates in the tropics an introduction to the theory of natural selection /
Beddall, Barbara Gould.
Bates, Henry Walter,1825-1892.
[New York] Macmillan (N.Y.) London Collier-Macmillan
1969
bibl p226-228
Wallace, Alfred Russel, 1823-1913.
Bates, Henry Walter, 1825-1892.
Natural selection.