Manchester Memoirs, Vol. xiiv. (1900). No. t). 11 



Fiq. I. 



by Scott Russell are often quoted as much in excess of 

 those with regard to which he gives any details in his 

 reports, (perhaps owing to an obvious misprint in a table* 

 referring to wave xxvii., where no for the height of the 

 wave should be 'lo). The highest waves referred tof are 

 found in connection with some figures in the plates, for 

 which no numerical measurements of speed are given. 



For the purpose of such measurements, the waves were 

 reflected at the ends of a trough, and, as the question of 

 the reflection without change is identical with that of 

 meeting and passing a similar and equal wave without 



* Brit. Assoc. Reports, vol. Ivi. (1837) p. 440. 



t Il)id., vol. Ixiii. (1844) pp. 3S6 7. Plates 50, 51. 



