Page 940 



INDEX 



Reference 



No. Page 



Waves, allowance for sounding in ... 3421 255 



Weather 



broadcasts. 145 34 



Coast Pilot requirements 916 840 



Favorable needed for certain survey 



operations. 1333 2o 



Importanceof 1333 20 



Local conditions 



Cyclic changes in 1453 35 



Effect on survey operations 1453 35 



Forecasting 1453 35 



Reporton 1453 36 



Report, special, written on 8584 806 



Ship reports of by radio 



of stonns and dangers .- 1451 35 



Routine 1451 34 



Sounding Record entries required 8133 760 



Study, advance of conditions 1333 20 



Studv of , its importance .-. 145 34 



tables in Coast Pilot 916 835 



Triangulation observations, needed for.. 2213 70 



Weighing survey buoys 2852 187 



Weights, paper 4835 432 



Whaleboat 



Description 4241 326 



Dimensions 4241 326 



Sounding from 4625 387 



Use 4241 327 



Wharves 



Coast Pilot requirements 916 840 



Depths at , where published 916 840 



Sounding alongside 3434 258 



Whatman's paper sheets 7111 657 



{233 Qi 



7114 658 



used for topography 233 90 



Whitewash 276 161 



Dry surfaces, placed on 276 161 



Precautions when mixing 276 161 



Preparation of 276 161 



Quantity for one hydrographic signal 276 161 



sprayed on inaccessible cliffs 2461 106 



Spray gun used for 276 161 



Wire-drag 

 depths 



Descriptive Report requirements 8422V 789 



Inking on smooth sheet, method 7866 744 



{78fifi 744 



9343a 856 



Description of 391 307 



equipment, standard 391 307 



Least depths proved by 3663 283 



Protractor fitting for plotting 4532 374 



substituted for development 355 274 



Wire-drag 



surveys 391 307 



Least depths from prior need not be(351 268 



investigated 13523 269 



Wire 



Floating used in traverse measure- 

 ments 2381 96 



Positions, hydrographic, used in locat- 

 ing 3344 224 



rope (see also Buoys, survey, anchor cable) 



Corrosion of {|^« }31 



Stainless steel 



Buoy anchor cable, used for 2832 173 



Advantages 2832 173 



Corrosion of ordinary wire rope used in 



conjunction with 2832 173 



Specifications 2832 173 



Sounding 465 394 



Care of l*^^^ ^31 



(_-areoi -— \4658 396 



Oiling 4312 331 



Piano 



Capacity of deep-sea sounding machine.. 4631 389 



Coefficient of expansion of 4468 361 



Description and dimensions.. 4652 394 



Reeling-in-speed 4633 391 



Wire— Continued . 

 Sounding— Continued. Reference 



Piano— Continued. ^o. 



Splicing . 4656 



to rope. 4655 



to stranded wire 4654 



Stray line used with 4652 



Placing new on sounding machine 4657 



Protection and care {jrw 



Serial temperature observations, precau- 

 tions in 6321 



Stranded 



Capacity of LL-type sounding machine. 4631 



Description and dimensions 4651 



Serial temperature observations, 



used in 6321 



Sheave correction for ufiii 



Splicing 4653 



Splicing to piano wire.. 4654 



Traverse measurements with 2381 



Taut-wire apparatus 4461 



Putting on apparatus 4465 



Tension during a measurement 4466 



traverse, distance measurements by 2381 



traverse substituted for stadia -. 2381 



Wire sounding(s) 3422 



Bottom characteristics obtained with 3842 



Correcting forworn sheave 18222 



Currents, in 3464 



Detecting at great depths 3422 



Echo soundings are replacing 342 



fain 



Echo soundings, to supplement doubtful. <563 



[571 



Errors in 3422 



Frequency requirements 3432 



Paying out wire, rate of 3422 



Position frequency requirements 3313 



Recording 3422 



Approved method (HlustTotion),- fig. 17i 



Reeling-in rate 3422 



Sinker used in taking |^1^®|- 



Submarine canyons, in -{sG.^ 



Taking 3422 



Wire sweep, description 391 



Woods Hole Oceanographic Institution 6322 



World War I, development of echo sounding 



during 512 



World War I, studies of sound transmission... 611 



Wreckage, symbolization 7868 



Wrecks 



Causes of explained in Coast Pilot 916 



Charted , verification required 3522 



cleared with wire drag, symbolization 7868 



Coast Pilot requirements 916 



Descriptive Report requirements 8420 



Floating , report to Coast Guard 365 



on prior survey sheets, verification required. 3521 



Smooth-sheet requirements 7868 



Stranded 



Descriptions required 365 



Locations required 365 



Symbolization 7868 



Sunken 



Locations required 365 



Symbolization. 7868 



Wire-dragging 365 



Wrico lettering set 4834 



Y 



Yachtsmen to be consulted about shoals 3622 



Yachts, value as leased launches 4233 



Yards, conversion table table 37 



Zero soundings, smooth-sheet requirements 7735 



Zones, danger 916 



Page 

 395 

 395 

 395 

 394 

 395 

 331 

 396 



580 



390 

 394 



580 

 393 

 393 

 394 

 395 

 96 

 353 

 355 

 357 



256 

 302 

 393 

 772 

 265 

 256 

 253 

 192 

 541 

 549 

 257 

 258 

 256 

 214 

 257 

 754 

 256 

 398 

 410 

 192 

 541 

 256 

 307 

 583 



440 



556 

 744 



841 

 269 

 745 

 841 

 790 

 282 

 268 

 744 



282 

 282 

 745 



282 

 745 

 282 

 431 



278 

 326 



882 



724 

 830 



