but its importance consists in the great effect produced by the accumulation in one direction, during successive generations, of differences absolutely inappreciable by an uneducated eye-differences which I for one have vainly attempted to appreciate.
baina beronen garrantzia hezi gabeko begiarentzat zeharo hautemangaitzak diren aldeak-ni neu behintzat alferrik saiatu nintzen aldeok hauteman nahirik-norabide berean metatzeak eraginiko ondoren handian datza.