Now, what is called the scientific method is the method of ignoring individualities; and, like many mathematical conventions, its great practical convenience is no proof whatever of its final truth. Let me admit the enormous value, the wonder of its results in mechanics, in all the physical sciences, in chemistry, even in physiology—but what is its value beyond that? Is the scientific method of value in biology? The great advances made by Darwin and his school in biology were not made, it must be remembered, by the scientific method, as it is generally conceived, at all. He conducted a research into pre-documentary history. He collected information along the lines indicated by certain interrogations; and the bulk of his work was the digesting and critical analysis of that. For documents and monuments he had fossils and anatomical structures and germinating eggs too innocent to lie, and so far he was nearer simplicity. But, on the other hand, he had to correspond with breeders and travellers of various sorts, classes entirely analogous, from the point of view of evidence, to the writers of history and memoirs. I question profoundly whether the word “science,” in current usage anyhow, ever means such patient disentanglement as Darwin pursued. It means the attainment of something positive and emphatic in the way of a conclusion, based on amply repeated experiments capable of infinite repetition, “proved,” as they say, “up to the hilt.” It would be, of course, possible to dispute whether the word “science” should convey this quality of certitude; but, to most people, it certainly does at the present time. So far as the movements of comets and electric trams go, there is, no doubt, practically cock-sure science; and indisputably Comte and Herbert Spencer believed that cock-sure could be extended to every conceivable finite thing. The fact that Herbert Spencer called a certain doctrine Individualism reflects nothing on the non-individualising quality of his primary assumptions and of his mental texture. He believed that individuality (heterogeneity) was and is an evolutionary product from an original homogeneity. It seems to me that the general usage is entirely for the limitation of the use of the word “science” to knowledge, and the search after knowledge, of a high degree of precision. And not simply the general usage; “Science is measurement,” Science is “organised commonsense,” proud, in fact, of its essential error, scornful of any metaphysical analysis of its terms.