Chapter 3 As I have said, it was not immediately that these wild visions began to hold their terrifying quality. Certainly, many persons have dreamed intrinsically stranger things - things compounded of unrelated scraps of daily life, pictures,and reading, and arranged in fantastically novel forms by the unchecked caprices of sleep. For some time I accepted the visions as natural, even though I had never before been an extravagant dreamer. Many of the vague anomalies, I argued, must have come from trivial sources too numerous to track down; while others seemed to reflect a common text book knowledge of the plants and other conditions of the primitive world of a hundred and fifty million years ago - the world of the Permian or Triassic age. In the course of some months, howeve

