134 



NAUTICAL CHART MANUAL 



40'30" 



12° w 



5 5" 



J I I I 



2,500 to 9,000 



37' 



5 0" 



I 



40" 



_J 



30" 



_l 



10" 72°36' 50" 



55' 



30" 



10,000 to 29,000 



-57' 



37' 4 5" 30" 



J I \ \ \ L_ 



36' 



J \ L 



3.75mm 

 3 75mrTi 



± 



75°35' 



30,000 to 49,000 



Interval Interval Interval 

 Project. Project. Project, 

 lines figures subdiv. 



2.0mm. _ 



Scale 



5 000 



10 000 1' 1' 



15000 r 1' 



20000 2' 1' 



30000 2' 2' 



40000 5' 5' 



5mm. _, 



—45' 



SUBDIVISIONS 

 On scales 9,000 and larger, one-half minute at the 

 approximate center of the east, west, north, and south 

 neatlines to be divided into seconds and numbered 

 as illustrated. 



On scales 10,000 to 49,000, one minute at the ap- 

 proximate center of the east, west, north, and south 

 neatlines to be divided into seconds and numbered 

 as illustrated. 



Degree numbers 12 pt. Lt. Lith. 



(Omit 00' with Degrees) 



Minute numbers 8 Pt. Lt. Lith. 



Second numbers 6 pt. No. 2 L. C. G. 



Second numbers (with Minutes) 7 pt. Cen. Exp. 



Plane Coordinate Grid numbers .6 pt. No. 3 L. C. G.C. 



O 



o 



o 



crT 



o 

 o 



CO 



h 



-57' 



56' 



3.75mm. 



1.5mm.; 



2.5mm.- 



.300 



,1 J, ) , 

 35° 



55' 



O 



o 



o 

 o 



-56' 



o 

 o 

 o_ 

 ctT 



o 



o 

 o 

 to 



42° 



55' 



37° 



:55' 



FIGURE 4 — Border Subdivisions 



