conditions of organised life is a conclusion which we cannot escape from our point of view; and which is fully and satisfactorily corroborated by our daily experience that water, earth, and air under the sun's influence are changed into wheat; and wheat is manufactured into the bread which nourishes man and sustains his life. Non-organised particles of matter are constantly being organised in living organisms and displace the worn-out materials in their tissues—not one atom of the latter remaining for good in a healthy living body.
The theory of evolution may be called an hypothesis, an assumption, a presumption. But in that case we must say with Mill that the rule twice two is four is also a mere assumption. The evidence for the latter is not stronger than that for the former. Mill declares that after all twice two might somewhere be five. Exactly so and not otherwise evolution might be somewhere interrupted, so that something would originate out of nothing instead of evolving from other things through transformation.
Prof. Max Müller speaks very sarcastically about the speechless man, the homo alalus who is supposed to be the ancestor of the present man. He says (l. c., p. 585):
"Of the Homo alalus, the speechless progenitor of Homo sapiens, with whom Professor Romanes seems so intimately acquainted, students of human speech naturally know nothing."
Prof. Max Müller also condemns all efforts of approaching the problem of the origin of language through observation of children and animals. The former he calls "nursery philology" the latter "menagerie psychology." And it is certainly true that the problem of the origin of language cannot be solved from observations of children or animals, because the problem lies in another field. The problem is not how a ready made language is transferred upon the growing mind of a baby but how speechless beings developed into speaking beings. And all the intelligence of clever animals is still very different from the rational thought of man. This is true, but it is also true that good observations of animal psychology and also of nursery philology will throw some light upon the evolution of rational thought.