After Wallace returned to England in 1862, he became one of the staunchest defenders of Darwin's "On the Origin of Species". In one incident in 1863 that particularly pleased Darwin, Wallace published the short paper "Remarks on the Rev. S. Haughton's Paper on the Bee's Cell, And on the Origin of Species" to rebut a paper by a professor of geology at the University of Dublin that had sharply criticised Darwin's comments in the "Origin" on how hexagonal honey bee cells could have evolved through natural selection.