"First," said the robot, "I will tell you what Bradshaw discovered after more than twenty years of research. There can be no reasoning or thought without life. All life as we know it is a combination of two things—mind and matter. We have never been able to discover any form of life that is not a combination of both. The brain is not the mind, but in human beings it is the medium through which it makes itself manifest. Behold!

He snatched off the blond wig and skull-case. The astounded onlookers saw a human brain snugly encased in a transparent skull-shaped receptacle. Tenuous, fine strands, almost inviible, extended in an intricate network over the delicate brain membranes. The hairlike strands almost completely covered the cerebellum and cerebrum, converging in the sickle- shaped partition of the falx cebri, which divides the two hemispheres of the cerebrum. The entire brain was immersed in some viscous solution, it envelop the' exposed furrows and convolutions.