INDEX 



209 



Page 



Plane coordinate grid note (Fig. 10) 11 



Plane coordinates, computation of 101-104 



Plane of reference, soundings 51 



Mean Low Water 50 



Mean Lower Low Water 50 



Planes of reference, note (Fig. 9) 140 



Plastic (see New Charts and Comp. Review). 4, 19 



Platform 47 



Plotting aids from triangulation 77 



Point (geographical feature) (see Abbrevia- 

 tions) 107 



Points, compass (U) 188 



Polar semi-axis (see Dimensions of the Earth), 12 



Pontoon bridge (H-17) 173 



Port Series Publication, pier numbers (see 



Piers) 47 



Position of aids 77-85 



Post light (K-1) 196 



Post Office (1-29) 179 



Power transmission line (Fig. 1) (H-5) 178 



Preliminary chart (see Basic Requirements).. 15 



Preliminary manuscript 40 



Prices of charts (Fig. 36) 167 



Print, latest, compared with Drawing 16 



Print, new 6 



Printing date 5 



Private aids (K-1 7 ; L-29, -Lf ) 85 



Lighted 85 



UnUghted 85 



Private buoys (Fig. 9) (L-29) 182 



Private names on landmarks and buildings 25 



Private roads omitted 48 



Privately maintained buoys (Fig. 9) (L-29)__. 182 



Privately maintained Hghts (K-17) 85 



Prohibited anchorage (Fig. 1) (G-12) 177 



Prohibited areas (Figs. 1, 12-13) (P-25) 20 



Project depth 18, 62-64 



Projection lines (Fig. 1) 98 



Projection note (Fig. 2) (see Scales) 12 



Projection ruUng machine 101 



Projections (Figs. 1, 4,-6) 97-104 



Border subdivisions and numerals (Figs. 



4,-6) 134-137 



Completed projections 101 



Construction of a Mercator projection 98-101 



Mercator projection, advantages and dis- 

 advantages 97 



Poly conic projection 9 



Projections and Grids 97-104 



Proofs 5 



Proportional dividers, settings (Fig. 25) 156 



Provisional charts (see Basic Requirements) _ _ 15 



Publication date (see Catalog of Chart Nos.)._ 20 



Publication note (see New Chart) 5 



Puerto Rico Datum (see Geographic Datums). 9 



Datum of soundings in Puerto Rico 51 



Page 



Q 



Q.T.G. radio station (M-lOa) 184 



Quadrangles 45 



Quality of the bottom (S) 187 



Quarantine (G-26) 177 



Quarantine buoy (L-24) (Chart No. 1 — 



Buoyage) . 195 



R 



Racing buoys, note (Fig. 10) 82 



Radar navigation detail added 1 



Radar reflectors (M-13) 81 



Radar responder beacon (Racon) (M-12) 184 



Radio and radar stations (M) 184 



Radiobeacons (Fig. 24) (M-3, 4, 5, 6) (see 



Aids to Navigation) 84 



Aeronautical (M-Mc) 30 



Frequency, code signal, operating sched- 

 ule 84 



Radio direction finding station (M-7) 184 



Radio mast (M-9) 184 



Radio navigational aids 30, 84 



Radio range, aeronautical (M-Md) 30 



Radio stations (M) 29 



Commercial broadcasting (M-10) 29 



Radio telegraph station (M-1) 184 



Radio telephone station (M-2) 184 



Radio tower (M-9) 26, 29 



Railroad (Fig. 1) (H-3, 3b, 3c, 14) 49 



Railroad tunnel (H-3c) 178 



Railroads, names of (see Abbreviations) 107 



Railways (Fig. 1) (H-3, 3b, 3c, 14) 49 



Ramp (G-39a) 177 



Range, channel, soundings on (see Selection of 



Soundings) 54, 55 



Range hues (Fig. 1) (P-1) 24 



Names, placement of 106 



Range names 24 



Range targets for measured mile (L-65) (see 



Trial Course) 23 



Ray lines (Fig. 1) (P-4) 186 



Light sector (K-12) (P-4) 181 



Recent developments 112-117 



