the method by which the belief is supported. The evidence adduced must be such as on the face of it to satisfy the general criterions of proof. Huxley's argument is that the testimony is by its nature not admissible for its purpose, and that to accept it would imply the abandonment of the most established scientific doctrines. He was therefore quite justified in asserting that he had not gone out of his way. A man of science may, of course, be content to write about electricity and leave Biblical criticism to others. But, in the first place, Huxley's scientific researches were on the very border where science and theology meet, and led directly to some fundamental problems. And, in the second place, he had been profoundly interested in the practical applications which concern a man of deep affections, and compelled both by character and circumstances to take life in deadly earnest. He had to pass through a sharp struggle and, as a brave man must do, had determined to come to a clear understanding with himself as to the aims and conduct of life. A very remarkable letter to Charles Kingsley exactly illustrates the point. It shows, as his son remarks, the genuine man more clearly perhaps than any of his writings. Huxley and his wife had suffered under the almost
