INDEX 



213 



Page 



True courses (see Intracoastal Waterway 



Charts) - - - 18 



Tunnel (H-3c).. 178 



Turret (Cupola) (1-36) 27 



Twelve-foot curve 62 



Twin, when omitted (see Landmarks) 25 



Type specimens (Figs. 15 to 23, 38) 4, 154-169 



Names 105-109 



Ordering 108-109 



u 



U.S. Coast and Geodetic Survey, origin 1 



U.S. Corps of Engineers (D-De) . 62 



Annual report 14 



Rectangular coordinates 101-104 



Stream depths i 55 



Tabular forms (see Improved Channels) ._ 62 



U.S. Geological Survey quadrangles 14, 45 



Underwater features (Fig. 20) (see Placement of 



Names) 106 



Units : 



Depth 52 



Time, distance, etc. (E) 176 



Unlighted beacons (Fig. 19) (L-52) 196 



Unlighted buoys (Chart No. 1 — Unlighted 



buoyage) 195 



Unreviewed surveys 50 



Unsurveyed shoreline (A-1) 41 



w 



Warning, note (Fig. 12) 143 



Water features (Figs. 21 to 23) (see I'iacemenl 



of Names) 106 



Water tower (1—15) 27 



Weather Bureau signal station (.J-.)b) 31 



Weights of hues (Fig. 1) 131 



Wharf (G-18) 177 



Whistle buoy (L-4) (Chart No. 1— Lighted and 



Unlighted buoyage) 194-195 



Windmill (1-42)." 28 



Wire drag 51 



Dangers (0-6a) 51 



Note (Fig. 11) 142 



Surveys 51 



Swept areas (Q-9, 9a) 51 



Wrecks 51, 70, 71 



Woodland, coniferous (C-10) 175 



Woodland, deciduous (C-9) 175 



Woods, in general (C-lOa) 175 



Wreck or obstruction buoy (L-20, 20a) 194 



Wreckage (0-29) 70,71 



Wrecks (O) (.see Wire Drag Surveys) 51, 70, 71 



Charted wrecks 70, 71 



Cleared by vriTe drag 51, 70, 71 



Dangerous and nondangerous 70, 71 



Special charts 70 



Submerged 70, 71 



Symbols 70, 71 



Wire-drag clearance depths over 51 



V 



Variation, magnetic (see Compass Roses) 9-11 



Vegetation : 



Berm line (see Marsh) 41 



Note (Fig. 9) 140 



Symbols omitted 41 



Verification of wire-drag surveys 74 



Vertical lettering (see Placement of Names)-. 106 

 Vertical stripe buoy (L-14, 14a) (Chart No. 1 — 



Unlighted buoyage) 195 



Viaduct (H-8) 178 



Viewpoint (D-6) 176 



Visible wreck (0-11, 12, 13a) 70,71 



Visibility, lights 78-80 



Volcanic ash (S-Sb) 187 



Yards : 



Conversion to meters (Fig. 26). 

 Linear scale (Figs. 7, 8) 



.. 157 

 138, 139 



U.S. GOVERNMENT PRINTING OFFICE : 1964 O — 692-834 



