CONTENTS 13 



PART III 



ON STATIONARY AND PROGRESSIVE WAVES IN 

 RIVERS 



CHAPTER VII 



PAGE 



The flood-wave of rivers The roll- wave in the Tees In 

 the Ure In the Nikko torrent On the advance of a 

 flood over dry ground . . . . .221 



CHAPTER VIII 



Tidal bores Wave-length of the Severn bore On the 

 want of concordance between height of tide and 

 height of bore, and on the conditions which deter- 

 mine the starting-point of the bore . . . 230 



CHAPTER IX 

 Cinematographing the Severn bore . , . . 254 



CHAPTER X 



Stationary or standing waves Cross-stream progressive 



waves : observations in Niagara River . . . 265 



CHAPTER XI 



On streams which flow as a series of roll-waves Observa- 

 tions on a conduit from Territet to Glion Observations 

 on the conduit of the Griinnbach (Merlingen,Thunersee) 

 Observations on the conduit of the Guntenbach 

 (Gunten, Thunersee) . . . , . 294 



CHAPTER XII 



The sounds of running water The gushing motion of 

 cataracts Conical structures produced by the break- 

 up of a waterfall The wave-track of a ship . . 333 



