277 . 



Paragraph 



Current tables 492 



Currents: 



Rotary 5, 485-490 



Analysis of rotary currents 499 



Mean curves 505 



Dams in estuary: 



Effect on tides and currents 466 



Computation of effect- 477 



Datums: 



Tidal, description 3, 157, 193-194 



Mean sea level 159-163 



Half tide level 164 



Low and high water datums 165-168 



Mean low and mean high water 169-180 



Of spring tides 181-185 



Mean lower low and higher high water 187-192 



Determination by comparison 196-207 



Fixation of 208-211 



Computation of effect of channel improvement 467-475 



Declination of sun and moon 35 



Declinational: 



Datum planes 187 



Ranges 152 



Delaware River: 



Current curves from cubature 311-313 



Comparison with ideal estuary _ 443-445 



Effect of fresh water discharge 454 



Effect of improvements 464-465 



Discharge: 



Through tidal channel, equations 296-298 



Determination by cubature 307-314 



Relation to storage, in long canal 388-391 



Preponderance, in connecting canal 416-419 



Distortions of primary current: 



Due to form of friction term 260-263 



Other distortions, in short section 264^276 



In long canal 404-415 



Diurnal age ^ 153 



Diurnal inequalities 152, 189, 190 



Diunial range. 4, 152 



Diurnal type of tides 139-140 



Duration of rise and fall 460 



Ebb current, defined 5 



Eccentricity of moon's orbit 43 



Ecliptic, defined 3o 



Elimination of residuals of components 100 



Entrance head 234-23o 



Epoch: 



Defined 103 



Computation of 11^-119 



Greenwich 120 



Equatorial tides 1^" 



