![Darwin, C. R. 1882. The descent of man, and selection in relation to sex. London: John Murray. 2nd edition, fifteenth thousand. Darwin, C. R. 1882. The descent of man, and selection in relation to sex. London: John Murray. 2nd edition, fifteenth thousand.](http://darwin-online.org.uk/converted/scans/1882_Descent_F955(online)/1882_Descent_F955_362.jpg)
Darwin, C. R. 1882. The descent of man, and selection in relation to sex. London: John Murray. 2nd edition, fifteenth thousand.
![Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.](http://darwin-online.org.uk/converted/scans/1874_Descent_F944(online)/1874_Descent_F944_405.jpg)
Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.
![Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.](http://darwin-online.org.uk/converted/scans/1874_Descent_F944(online)/1874_Descent_F944_410.jpg)
Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.
Environment and evolution of Stone Age cultures in India with special reference to the Middle Stone Age cultures
![Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand. Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.](http://darwin-online.org.uk/converted/scans/1874_Descent_F944(online)/1874_Descent_F944_418.jpg)