Note 2 — Chapter III

Sir James Jeans' view of the cosmic rays is that they are causing the material universe to dissolve into radiation. "The whole of the available evidence," he writes, "seems to me to indicate that the change is, with possible insignificant exceptions, forever in the same direction—forever solid matter melts into insubstantial radiation, forever the tangible changes into the intangible ... there can be but one end to the universe ... the end of the journey cannot be other than universal death!"—Sir James Jeans: The Mysterious Universe.