While the Hopi Desert contains large bull snakes and king snakes and long slender side-winders, the rattlesnake is a short specimen, seldom more than two feet in length. It is active enough for all purposes, however, and can produce extraordinary activity of movement on the part of those not initiated in the Snake clan. Once on a desert road I alighted from my car to arrange something. I heard a sibilant noise, a whirring dryish whistle or hiss that, peculiarly enough, is neither. There is no English word to describe accurately the rattlesnake’s warning, but it is imperative, and procures immediate attention. In a thousandth part of a second I discovered the gentleman scuttling rapidly between my feet. He wished to avoid me, and I shared his emotions. It is of course impossible to assert exactly how many feet directly upward and sideward I impelled myself. There was a space of time in which I was oblivious to everything save the breaking of leaping records. I came to at a point entirely clear of the road, as my acquaintance disappeared into the sparse grass at the opposite side. Then, knowing where he was, and that he was safe and unharmed, I did not follow to put on any Snake Dance experiments. The swift grasp of the neck immediately behind the head, the triumphant wave in the air, the pressure along the spine, and the composure of the snake-gatherer, all may combine to render said snake harmless or indifferent; but—you try it! The public part of the Snake ceremony consumes about twenty minutes of time. The kisi, a bower of cottonwood boughs, something like a miniature tepee, is erected midway of the plaza and to one side. The kisi screens a hole in the rock-floor, and just before the dance begins a mysterious bag is carried out and placed therein. It contains the snakes. The hole is covered or roofed by a thick piece of board.