Descent of Man

* As the works of the first-named authors are so well known, I need not give the titles; but as those of the latter are less well known in England, I will give them:- Sechs Vorlesungen uberdie Darwin'sche Theorie: zweite Auflage, 1868, von Dr. L. Buchner; translated into French under the title Conferences sur la Theorie Darwinienne, 1869. Der Mensch, im Lichte der Darwin'schen Lehre, 1865, von Dr. F. Rolle. I will not attempt to give references to all the authors who have taken the same side of the question. Thus G. Canestrini has published (Annuario della Soc. dei Naturalisti, Modena, 1867, p. 81) a very curious paper on rudimentary characters, as bearing on the origin of man. Another work has (1869) been published by Dr. Francesco Barrago, bearing in Italian the title of "Man, made in the image of God, was also made in the image of the ape." During many years it has seemed to me highly probable that s****l selection has played an important part in differentiating the races of man; but in my Origin of Species I contented myself by merely alluding to this belief. When I came to apply this view to man, I found it indispensable to treat the whole subject in full detail.* Consequently the second part of the present work, treating of s****l selection, has extended to an inordinate length, compared with the first part; but this could not be avoided. * Prof. Haeckel was the only author who, at the time when this work first appeared, had discussed the subject of s****l selection, and had seen its full importance, since the publication of the Origin; and this he did in a very able manner in his various works. I had intended adding to the present volumes an essay on the expression of the various emotions by man and the lower animals. My attention was called to this subject many years ago by Sir Charles Bell's admirable work. This illustrious anatomist maintains that man is endowed with certain muscles solely for the sake of expressing his emotions. As this view is obviously opposed to the belief that man is descended from some other and lower form, it was necessary for me to consider it. I likewise wished to ascertain how far the emotions are expressed in the same manner by the different races of man. But owing to the length of the present work, I have thought it better to reserve my essay for separate publication.