Neo-Lamarckism and Darwinism

Abstract

IT has been sometimes said that it is difficult to tell the difference between the supposed effects of the environment upon an organism, and the accumulation of favourable variations. There can be no difference; for they are but two explanations or theories to account for the same thing. A species is characterized by certain features; it is these which have to be accounted for; and any number of theories may be propounded as to the cause. It is simply a question as to which can be “proved” to be either the most probable or actually true.