18 LIST OF ILLUSTRATIONS 



PAGE 



THE GUNTENBACH WITH TWO ROLL- WAVES . . -325 



UPPER PART OF FALLS AT NIAGARA, SHOWING UNBROKEN 



WATER . . . . . . .331 



NIAGARA FALLS, SHOWING FLEECY APPEARANCE PRODUCED 



BY THE BREAKING OF THE FALLING WATER . . 335 



THE BREAKING WATER OF NIAGARA FALLS, TAKEN FROM 



S.S. MAID-OF-THE-MIST ..... 339 



FALLS OF THE TSCHINGELBACH, BURGLAUENEN . . 343 



WATER ROCKETS PROJECTED UPWARDS FROM THE FOOT 



OF THE HORSESHOE FALLS, NIAGARA . . 347 



WAVE-TRACK OF STEAMER ON THUNERSEE, SHOWING 



THWART-SHIP AND DIVERGING WAVES . . - 351 



WAVE-TRACK OF STEAMER ON CONISTON WATER, SHOWING 

 INTERFERENCE BANDS BETWEEN DIVERGING WAVES OF 

 THE BOW AND STERN SERIES . . . . 355 



WAVE-TRACK OF STEAMER ON CONISTON WATER, SHOWING 

 INTERFERENCE BANDS AND DOUBLE-CRESTED DIVERG- 

 ING WAVES . . . . . .361 



WAVE-TRACK OF STEAMER ON LAKE LEMAN 363 



WAVE-TRACK OF STEAMER ON LAKE LEMAN, SHOWING, ON 

 THE LEFT, THE INNER BOUNDARY OF GROUP OF 

 DIVERGING WAVES ..... 365 



