INDEX 



Page 931 



Sounding Record(s)— Continued. Reference 



Sounding(s)— Continued. ■^°' 



of two sheets entered in different volumes... 81 

 reduced and checked at Processing Office . . . 9241 (a) 



Speed changes to be recorded 13461 



Stamps, rubber, standard (list) ..-. 954 



/3413 

 Supervision of jgjg 



supplemented by other records 83 



Survey personnel to be named in 8131 



Tangents, angles to; height of eye to be re- 

 corded 33366 



Tide station entries required 4672 



time, correctness of 4542 



Time record 81 



title page, completion of 819b 



Topographic revision data recorded in .. 381 



transmitted separately 836 



Turns between lines, recording 3454 



Turns, recording 3463 



Verifier's use of 9331 



Wire soundings, recording |^ ^^^ 



Spacing dividers (see Dividers, spacing) 

 Spacing positions (see Positions, hydrographic, 



frequency) 

 Spacing soundings (see also Soundings, fre- 

 quency, and Soundings, spacing) 



with spacing dividers... 4813 



Spacing sounding lines 315 



Coastal areas 3151 



Inside waters. 3152 



Maximum , specified in project instruc- 

 tions 315 



Reducing spacing <3g^ 



Authorization for 1214(c) 



Requirements, general 315 



Sheet, practicable limit on 315 



Shoal development 3662 



Table for , by scales 315 



without plotting 376 



Special instructions (see Project instructions) 



Special publications, C. & G. S. (list) 952 



Specific gravity of sea water (see also Salinity of 

 sea water) 



Apparent , definition 6331 



Measured , definition 6331 



Measuring with hydrometer 4753 



Precautions during measurements 4753 



Specimens, bottom (see Bottom characteristics) 

 Speed, motor, echo-sounding instrument (see 



Motor speed) 

 Speed of rotation, Dorsey Fathometer index 



disks (formula) 5243 



Speed, survey' vessel 

 determined by using spacing dividers 4813 



determined graphically 14827 



in dangerous waters -{,346 



scales, graphic 4826 



Construction 4826 



Description 4826 



Method of use 4826 



on boat sheets... 3237 



Purpose 4826 



Sounding 



changes 

 accounted for in smooth-sheet plotting.. 7721 



Numbering positions at 3312(6) 



Positions to be taken at 3461 



f3141B 



Recording ||^g} 



[815(!) 



Dead-reckoning 3374 



Echo-sounding 3461 



Hand-lead sounding 3461 



Reducing in dangerous waters 3461 



Uniformity of 3461 



Speed trial courses in Coast Pilot 916 



Spelling of geographic names 162 



Spherical excess. 2212 



Formula 2212 



Spheroid of reference 2171 



Spire, definition 8534C 



Splicing sounding wire (see Wire, sounding) 



Split fix, definition 3335 



Split fix, plotting 7655(6) 



Splits, sounding line 



Definition 3241 



Depth curves, normal to ^41 



Distance angles, run by using 3143 



in R. A. R., difficulty in running 6832 



753 

 845 

 262 

 264 

 871 

 251 

 769 

 774 

 759 



220 

 399 

 381 



755 

 769 

 296 

 785 

 263 

 265 

 849 

 257 

 754 



421 

 200 

 201 

 202 



200 

 200 

 271 

 11 

 200 

 200 

 283 

 201 

 295 



584 

 584 

 412 

 412 



422 

 426 

 42S 

 43 

 263 

 426 

 426 

 426 

 428 

 207 

 426 



719 

 213 

 264 

 199 

 262 

 264 

 766 

 235 

 264 

 263 

 264 

 264 

 835 

 48 

 70 

 70 

 67 

 803 



219 

 702 



208 

 197 

 200 

 946 



Reference 

 Splits, sounding line— Continued. ^°- 



required occasionally 3243 



Shoal areas, to delineate 3621 



Shoals, to locate 315 



Spacing, economic, provided by using .. 3151 



Where required 354 



Spray gun, for whitewashing 276 



Spreading of sound (see Sound, spreading of) 



Spur, definition 16S2e 



Squares, method of, used in changing scale 7562 



Squat (see also Settlement and squat) 



Definition 553 



Stack, defljiition 8534 



Stamp No. 31, Graphic Record, use 57(fc) 



Stamp No. 33, Sounding Apparatus, draft 



measurement recorded in 5512 



Stamp No. 35 used in simultaneous com- 

 parisons -. 5522 



Stamp No. 41 for chronograph tape |^ ^g 



Stamps, rubber, standard (list) 954 



Stamps, rubber, use (For the use of any specific 

 stamp, see reference number in list of 

 stamps in 954 on page 871) 



Standard meridian, use for time 151 



Standard time 



to be used in records 151 



Use in hydrographic surveys 8142 



Standpipe, definition 8534C 



Star(s), in navigation 

 altitudes (see also Astronomic observations, 

 and Sextant angles, vertical) 



Prediction of 3.387B 



azimuths, prediction of 3387B 



Daytime observations 33870 



Finding in sextant by 4524 



bringing "down" to horizon 4524(o) 



bringing horizon "up" 4524(6) 



predicted altitudes 4524(c) 



identification by 3387B 



computation 3387B 



star chart 3387B 



star finder charts 3387B 



star identification table 3387B 



identification chart, construction of 3387B 



sight (s) (see also Astronomic observations) 



.\ceuracy of one sight 3384 



Combining of two observers 3387 



fix. - 3387 



f3384 

 Accuracy [^^^^j^ 



Combining bright and faint stars 3387 A 



Compensation of errors in 3384 A 



computation 3382 



East and west error in 3384B 



Figure of error in a-^— 3387 



Characteristic 3387 



Log readings, correlating with 3381 



Plotting a -. 3387 



Selection of stars 3387A 



Plotting on smooth sheet 764 



Plotting weighted observations 3387 



Predicted altitudes and azimuths 3387B 



Correcting 3387B 



Records, transmittal 3387 



Time to take 3384C 



Weighting 3387 



State coordinate systems... 7328 



Static, effect on chronograph tape 6851 



Static, whistle, definition 6851 



Station (s), control (see also Control stations) 



Definition 2111 



descriptions (see specific type of station) 

 marks 



.\zimuth 226 



Dimensions of standard disks 214 



Disks, description 214 



established near old stations 2261 



Legends to be stamped on 2263 



Missing , replacing 2261 



Moving 



horizontally, method 2262(6) 



to nearby locations 2262 



Stamping disks 2263 



vertically, method 2262(a) 



Old replaced with standard disks 2261 



Permanency of 226 



Relocation of nearby 2262 



Removing from abandoned sites 226 



Replaced , how to stamp disks 2263 



Replacing 2261 



Resetting 1 2261 



Subsurface 226 



Tile , unsatisfactoriness of 228 



Triangulation , requirements 226 



209 

 277 

 200 

 202 

 271 

 161 



56 

 695 



513 

 803 

 543 



510 



612 



654 

 655 

 871 



36 



36 

 762 

 803 



249 

 249 

 249 

 371 

 371 

 371 

 371 

 248 

 248 

 248 

 248 

 248 

 249 



240 

 244 

 244 



240 

 241 

 247 

 241 

 239 

 242 

 245 

 247 

 238 

 245 

 247 

 708 

 247 

 249 

 249 

 245 

 242 

 247 

 673 

 651 

 651 



60 



