AND OTHER WATER WAVES 235 



if the object be to see an imposing spectacle. The 

 favourite spot, visited by crowds at the highest 

 tides of spring and autumn, is Stonebench, and 

 there are others similar to it, such as Denny 

 Rock. The phenomenon at Stonebench is very 

 striking. 



The wave slackens in speed when it comes to 

 the shallowing water, increasing in height the while, 

 and finally charges over the shoal with a rush of 

 broken waters. I saw the phenomenon at Denny 

 " Pill " (or Brook) on April 30, 1900. Here the 

 wave, when first seen, was already in shoal water, 

 and, at all events from my low point of sight, 

 appeared solitary. It had a steep front, in places 

 overf ailing upon itself with foam (see Plate). 

 As soon as it passed the place of observation 

 it presented another appearance, viz., that of 

 a jgroup of smoothly-rounded waves (see Plate). 

 Being on this occasion closely occupied with 

 (obtaining photographs, I did not observe this 

 part of the phenomenon with undivided attention ; 

 but on a subsequent occasion (October 30, 1901), 

 at Priding, I was able to observe carefully, and 

 to photograph, a similar occurrence. The ap- 

 proaching bore, whatever wave disturbance may 

 have been half -concealed behind, presented a face 

 like the breaker of the seashore, and this was almost 



