Este párrafo queda sin comentar. En realidad debió quedar sin publicar pues el contenido nada tiene que ver con el origen de las especies.     528 We have, however, recently learned from the observations of Ramsay, in the van of many excellent observers—of Jukes, Geikie, Croll and others, that subaerial degradation is a much more important agency than coast-action, or the power of the waves. The whole surface of the land is exposed to the chemical action of the…