Page 932 



INDEX 



Station(s)-Continue(l. Reference 



marks— continued. •'^"• 



Type now used 214 



Types formerly used .-_ , 214 



names {see also Control station names) 



used for reference - 215(a) 



Recoverable , definition 214 



Sextant locations recordeil in separate volume 8321 



Spacing requirements fur hydrography 212 



Temporary nut described . 2142 



Three-point locations, classification 211 



Stations, current (see also Current stations) 

 to be shown on smooth sheet 7865 



Stations, R. A. R. {see R. A. R. stations) 



Stations, tide {see also Tide stations) 

 to be shown on smooth sheet 7865 



Statistical and cost data 156 



Statistics 



Field required in Descriptive Report 8431 



Office required in Descriptive Report... 844o 



Season's report requirements 8515(/) 



Sounding Record requirements 8161 



Units used in 124 



Steel towers 



Description 273 



used as hydrographic signals 273 



used as water signals -. 274 



Steering repeater, of gvro system 4422('j) 



Stellite 



Composition of .-. 45146 



used for sextant mirrors 45146 



Stop and ahead properly reported in Sounding f8141 

 Record. \8142 



Stopwatch 4544 



Use in astronomic observations 3384 



Use in hydrographic surveys 4544 



Stopping survey vessel engaged in dead reckon- 

 ing 3374 



Storms at sea 



Study of ....•..- 1452 



Weather report of 1451 



Storms, magnetic 4415 



Storm warning stations listed in Coast Pilot... 916 



Straightedges 4831 



Care of 4831 



Description 4831 



Lengths available 4831 



Testing 4831 



Testing before use 7322 



Stranded wire {see Wire, sounding, stranded) 



Strays, echo-sounding ^ 5147 



(5147 



Causes . -{5267? 



(542 



Characteristics 5147 



Definition 5147 



Distinguishing from bottom echoes 57(A) 



on fathograms not always distinguishable 



from shoals 571? 



Strays from soho-radio buoys {see also Chrono- 

 graph tapes, strays) 6852 



Streams 



Coast Pilot requirements 914 



Geographic names of 1671 



Terminology used 1682c 



Striker-type transmitting unit 5161 D 



Stroboscope, function of 5243 



Structures used as control stations 247 



Identifying before use 225 



S-turns, plotting 7653 



Style Manual, Government |®J^ 



Stylus, chronograph (see Chronograph, stylus) 

 Stylus, echo sounding {see also under name of 



specific instrument) 

 Insufficient pressure of , effect on fatho- 



gram g^-^^^^ 



Subaqueous distances {see R. A. R. distances) 

 Subaqueous explosions, probable frequency of 



sound 656(6) 



Subaqueous sound ranging {see R. A. R. ) 

 Subjects, special, to be included in Descriptive 



Report 842T 



Submarine 



depressions, approved terminology 1682(f 



elevations, approved terminology 1682e 



relief {see also Slope, bottom) 



Control buoys referenced to 2536 



Selection of sites 2536 



Depth curves, represented by 353 



interfering with sound propagation 2574 



Offshore , value in navigation IJ?? 



•similar to adjacent land 3531 



Sounding at irregular intervals over . . (343^ 



Page 

 63 

 62 



64 

 62 

 779 

 61 

 64 

 60 



744 

 42 



791 

 792 

 796 

 767 

 15 



158 

 158 

 158 

 340 



365 

 365 

 761 

 762 

 382 

 240 

 382 



35 

 35 

 338 

 839 

 429 

 430 

 429 

 429 

 429 

 668 



445 

 445 

 495 

 504 

 446 

 445 

 543 



549 



823 



52 



55 



451 



476 



109 



78 



710 



839 



841 



544 

 547 



55 

 55 



125 

 125 

 270 

 146 

 13 

 193 

 270 

 258 

 258 



Submarine— Continued. Reference 



relief {see also Slope, bottom)— Con. ^^■ 



Steep , best sounding line system for. -{oil} a 



Terminology approved .. 168 



topograjjhy 



illustrated on fathograms (slid 



Report on 8582 



valleys and canyons 



Bottom characteristics in 3842 



Echo soundings in 563 



Hydrographic surveys of 122 



Wire soundings in I^m 



Submarine Signal Company (w 



Subplans on hydrographic sheets | ^^"l 



Subplans on smooth sheets 7751 



Subsurface station marks, requirements 226 



Sum angles in triangulation observations 2216 



Sun 

 azimuth (s) 



Accuracy of in buoy traverses 2525 



Back-azimuth computation 942 



Buoy to shore stations in buoy locations. 2524 



combined with distances in buoy location 2525 



computations 941 



Correcting for buoy scope 9432 



Direction, preferable, of -: — observations- . 2543 



Formulas connected with 941 



Personnel needed for operations (table 



S) 142 



Sextant, use of, in measuring 4526 



Use in buoy locations 2523 



Hydrographic signals, reflected from 271 



Searching for shoals, position of 3623 



sights (see also Astronomic observations) 



Accuracy of one sight 3384 



Altitude, preferable 3386 



Dead-reckoning line adjusted to 3383 



Frequency requirements 3386 



Meridan altitude sight 3386 



When to take 3386 



Sunken rocks (see Rocks, sunken) 

 Supersonic frequencies (see also Frequencies, 

 supersonic) 



used in echo sounding 512 



Supersonic frequency units, directional proper- 

 ties 563 



Supplemental instructions 121 



Surface of sea water temperature, measurement 



of 6321 



Survey(s) 



Air photographic (see Air photographic 



survey) 

 buoy (see Buoys, survey and Buoys, control) 

 data 



Charting , preliminary report of 1761 



Disproved reported in Descriptive 



Report 3521 



of other organizations, transmitted to Wash- 

 ington Office 834 



equipment 



Care of 4312 



of a launch 422 



of the Explorer 4122 



Geodetic control, not connected with... 392 



Hydrographic {see Hydrographic surveys 



and Hydrographic sheets) 



Old (see Prior surveys, hydrographic) 



methods, nonstandard, report on 8581 



Minor (see Field examinations) 



New recommended by Coast Pilot reviser 9133a 



numbers (see also Field numbers of surveys 



and Registry numbers of surveys) 154 



Field , on smooth sheets 793 



Registry , on smooth sheets 793 



Offshore large-scale (see "Circle" sheets) ' 



operations (see also Project) 



Advance plans for 134 



Completion of at end of season 1342 



Division of between survey units 135 



en route to working ground 17 



Parallel progress of 135 



Planning 13 



Priority of certain 1341 



Sequence of 1341 



Other organizations' , correlation require- 

 ments 916 



Prior (see Prior surveys) 



sheets (see also Hydrographic sheets) 



Completion of at end of season 1343 



Inventory of required in season's re- 

 port 8515(0 



ships (see Ships and Vessels) 



Page 



198 



198 



53 



545 

 546 



806 



303 

 541 



13 

 192 

 541 

 441 

 462 



26 

 259 

 727 



78 



72 



119 

 861 

 119 

 119 

 861 

 863 

 129 

 861 



28 

 372 

 118 

 152 

 278 



240 

 244 

 239 

 244 

 244 

 244 



441 



540 

 9 



580 



58 



268 



783 



331 

 324 

 320 

 308 



39 

 749 

 749 



826 



21 

 796 



