THE SHARKS OF NARBOROUGH 181 



graceful, glorified reincarnations of their terrestrial 

 activities. In all of this I had no false illusions 

 concerning my own relative functioning. While 

 I have never heard any rumor as to my possessing 

 any grace even at my best, yet on these same islands 

 and beaches I can at least correlate my activity, 

 and I can easily run down any of the creatures 

 which I am discussing. Whereas here at the sea 

 bottom I sprawl awkwardly, clutching at waving 

 weeds to keep from being washed away by the 

 gentle swell, peering out of a metal case infinitely 

 more ugly than the turtle's head and superior to 

 them only in my hearty admiration of their perfect 

 coordination in an exquisitely adapted environ- 

 ment. 



My pleasant turtle friend still floated motionless, 

 when suddenly he was the means of my making a 

 delightful discovery in Einstein relativity, — mak- 

 ing clear the fact that he was motionless and yet not 

 motionless. I was resting lightly on a bed of 

 weeds with a generous tuft of them in each hand. 

 I was aware that with every surge there was a 

 very decided movement of the whole mass but as 

 everything in sight was equally shifted my mind 

 registered no definite motion. Of one thing only 

 was I certain, that however we plants and organ- 

 isms at the bottom were blowing and vibrating back 

 and forth, the turtle at least, isolated in mid-water, 

 was as still as the distant rocks themselves. Be- 

 coming cramped I decided to stand upright for a 

 while, and gently lowered my feet until I felt them 

 fit into convenient crevices of the concealed rocks 



