370 INDEX 



DARWIN, Sir G. H., on the theory of tidal bores, 232 

 Darwin, Major Leonard, observations by, 72 

 David, Captain Hugh F., observations by, 73 

 Depth 



To which wave-agitation extends, 141-146 



In which waves break, 170 



Of water as affecting speed of waves, 85 

 Duluth, waves in canal at, 34 



EDDY of air between wave-crests, 105 



FLOOD, mode of advance over dry ground, 229 

 Forel, Dr. F. A., observations by, 31 

 Formulae for calculations relating to waves, 25, 86, 309 

 " Fulls," or beach ridges 



Of shingle, 158 



Of sand, 161 



GAILLARD, Colonel D. D., U.S.A. 



On the height of waves on Lake Superior, 33 

 On the depth in which waves break, 171 

 On the wave-front of a flood, 229 



Geneva, Lake of, size of waves, 31 



Glyn, Mr. F. R,, observations by, 223 



Groynes, note on, 199 



Griinnbach, roll-waves in conduit of, 301-318 



Guntenbach, roll- waves in conduit of, 319-330 



HAMIL, Mr., observations by, 29 

 Helmholtz, H. von, on the steepest wave, 136 

 Hep worth, Captain Campbell, 114 

 Howe, Captain Percy, observations by, 75 



INDIAN Ocean, South, 68 



