INDEX 



Page 891 



Reference 

 No. 



Baker's Geographic Dictionary of Alaska 1672 



Baldwin piano unit in R.A.R. chronograph 6731 



Bank, inshore, definition 1682e 



Bank, offshore, definition __ _. I68I0 



Bank, use of term. 916 



Banks, sand, low-water limits on smooth sheet. 7862 



Barcheck(s) 557 



apparatus 



arrangement 5571 



Description. 5571 



dimensions 5571 



at phase changes 5238 



Frequency of 5572 



for shoal soundings 5572(a) 



for soundings deeper than bar check 5572(6) 



for velocity corrections 5572((?) 



in exposed waters 5572(c) 



in protected waters 5572(a) 



Index adjustment by 5572(d) 



Instrumental error determined by 5521 



Maximum depth 557 



method, description 557 



Minimum depth 557 



Reliability of 557 



Uses of 557 



Velocity corrections determined by {56I7 



Bare rocks (see Rocks, bare) 

 Barrels, oil and gasoline 



Reserve buoyancy of 281 



Type used for souo-radio buoy 2841(A) 



used ill buoy construction 281 



Bars 



Low-water limits on smooth sheets 7862 



Navigable 



Coast Pilot requirements 916 



Least depth in half feet on smooth sheet... 7713(a) 



Sounding on 356 



Base of operations, advance selection of.- 1334 



Bases in triangulation 212 



Requirements 223 



Base tapes returned to Washington at end of 



season 1371 



Basic hydrographic survey, description 351 



Basin, definition 16816 



Bathythermograph 473 



Bimetallic-reed type, description.. 4731 



Bourdon type, description 4732 



Calibration graph for 4733 



Glass slides 4733 



Glass slides, resmoking 4733 



Projector for enlarging records 4733 



records 4733 



Batteries, dry, for use on lighted buoys 2813 



Batteries for echo-sounding instrument (see un- 

 der name of specific instrument) 



Bay, definition 1682o 



Bayou, definition 1682c 



Beach, definition 916 



Beacons (see also Aids to navigation, fixed) 



Airway described in Coast Pilot 916 



Coast Polot requirements 916 



Designating on smooth sheet 78436 



Where numerous, triangulation may not be 



necessary 3831 



Beam compass 

 Description... 4814 



Use pl'* 



Use in "circle" sheet construction 3741c(l) 



Use in plotting R. A. R 7631 



Bearing repeater, of gyro system 4422c 



Bearings 

 as aids to navigation, surveyed and described. 356 



Coast Pilot usage 916 



Clearing , Coast Pilot requirements 916 



Compass • 



Accuracy 3361 



as control data (3361'^ 



as supplemental control, accuracy 7636e 



by pelorus, correcting lilsfi 



Magnetic , precautions in taking 4434 



Plotting on R. A. R. sheets 7633 



Recording 124! 



Recording in Sounding Record— 8146 



Series of to one object 3361 



Symbolization on R. A. R. sheets 7637 



to distantobjects, method of observation _. 4436 



for use in navigation, symbolization 7845 



Radio 4443 



Accuracy 4444 



affected by intervening land. (4444/; 



Page 



53 



633 



55 



54 



825 



743 



526 



527 

 526 

 526 

 473 

 527 

 527 

 527 

 527 

 527 

 527 

 527 

 512 

 526 

 526 

 526 

 526 

 526 

 527 

 538 



163 

 178 

 163 



743 



825 

 715 

 274 

 20 

 61 

 75 



27 

 267 



54 

 406 

 407 

 407 

 408 

 408 

 408 

 408 

 408 

 164 



54 



55 



825 



825 

 825 

 741 



299 



422 

 422 

 422 

 290 

 704 

 341 



274 

 825 

 826 



227 

 216 

 227 

 707 

 345 

 345 

 345 

 704 

 15 

 765 

 227 

 707 

 345 

 742 

 348 

 348 

 348 

 348 



Bearings— Continued. Reference 



Radio-Continued. ^o- 



Deviation, correcting for 4444e 



Distance limitation 4444c 



errors proportional to distance 4441 



Night effect 4444i 



Plotting on a Mercator chart 4445 



Precautions in using — — 4444 



Reciprocal may be read iiiid 



[444 



referred to magnetic compass.. .'{4441 



14444/ 

 [444 



Sharp minimum -^4441 



144446 



Behm, Alexander 512 



Belknap-Sigsbee specimen cylinder (see also 

 Detaching rod) 



Description 4744 



used in serial temperature observations 6321 



Bench mark(s) 



of other agencies, topographic location of 236 



Tidal 



elevations and descriptions furnished 1215 



Numbering 1433 



requirements for tide station 1433 



Topographic location of—— - 236 



Bessel's spheroid 2171 



Bight, definition 1682o 



Bilby steel tower (see Steel towers) 



Binocular telescope, sextant (see Sextants, 



telescope, binocular) 

 Bisectrix in R.A.R. 



Avoiding a 16823 



Definition 6814 



Effect of on direction of sounding lines.. 6831 



Plotting on boat sheet 6814 



Plotting positions near 6823 



Bisectrix in star fixes 3387 



Bludworth Depthometer 529 



amplifier, echo 529 



depth range 529 



Description_ 529 



fathogram paper -.. 529 



magnetostrictive units, description 529 



magnetostrictive units, installation 529 



motor speed control 529 



phases 529 



Bludworth, Incorporated (see also Simplex- 



Bludworth Fathometer) 522 



Blue ink, photographic reproduction of 1315 



Blueprints of other organizations, correlation 



requirements 916 



Blueprints of uncontrolled surveys (see Maps, 

 projectionless) 



Board on Geographical Names 167 



decisions 1671 



How are made 1671 



Publication of 1671 



duties 167 



Guiding principles of 1671 



jurisdiction 167 



members 1671 



Names to be submitted to 1672 



Boat compass 4416 



Boats, small 



Description of various 424 



of the E. Lester Jones 4132 



of the .Bzp/orer 4122 



Boat sheet (s) (see aZso Hydrographic sheets)... 32 



accuracy 321 



Air photographic survey origin of 3224 



Shoal and channel limits on 3624 



Areas requiring further examination 3621 



Care during use 324 



Charted data to be transferred to 3235 



C harted data, verification of 3522 



"circle" sheets (see also "Circle" sheets) 37 



Compass rose on 3237 



Completed , details required. 325 



Completed , review 3257 



construction 322 



Accuracy 3223 



Methods 3224 



Projection ruling machine not used 3224 



Control stations on 3231 



Descriptions required 3231 



Cuts to be left in pencil 3244 



f7912 

 data not found elsewhere I9342(i 



Definition and purpose 321 



Depth curves 

 from prior surveys, value. 3521 



Requirements •{353 



Spacing requirements 3532 



Page 

 348 

 348 

 347 

 349 

 349 

 348 

 348 

 346 

 347 

 348 

 346 

 347 

 348 

 439 



410 

 580 



12 

 32 

 32 

 94 

 67 

 54 



639 

 641 

 639 

 646 

 639 

 641 

 245 

 499 

 499 

 499 

 499 

 499 

 499 

 499 

 499 

 499 



459 

 17 



826 



51 

 52 

 52 

 52 

 51 

 52 

 51 

 52 

 53 

 339 



326 

 322 

 320 

 203 

 203 

 206 

 280 

 277 

 208 

 207 

 269 

 286 

 207 

 210 

 211 

 204 

 205 

 205 

 206 

 206 

 206 

 209 

 748 

 856 

 203 



269 

 210 

 270 

 271 



