I'm an alfred russel wallace fan myself.  Darwin wrote lots on women being inferior, esp. in Descent of Man.  Needs a bit of search:

"“Man is more courageous, pugnacious, and energetic than woman, and has a more inventive genius. His brain is absolutely larger"

"The chief distinction in the intellectual powers of the two sexes is shewn by man attaining to a higher eminence, in whatever he takes up, than woman can attain—whether requiring deep thought, reason, or imagination, or merely the use of the senses and hands"

"Thus man has ultimately become superior to woman. It is, indeed, fortunate that the law of the equal transmission of characters to both sexes has commonly prevailed throughout the whole class of mammals"

 

 Thanks for the note