SCALES 

 2:1 3: 



SCALES 

 4:1 5:1 



n « «, « iv a, c _ N n ., "m » r. o c. 2 n R S S S S 8 S 8 8 S! 8 § 



mImi.ImmI I m„I I I I I I I I I , ,,,!,,, , l,,,,l ,...l.,, I,,,,!,,,,!,,,,!,,,,! I I I I I I I I ... . I ,., . I,,., I,,,, I I „„ I„„l.„,l I I I I I I I I I I 



8 D § 



i It* I I I 



LOGARITHMIC SCALE 



Given any two corresponding quantities, solve 

 (of third by laying rule through points on prop- 

 er scales and read intersection on third scale. 



MANEUVERING BOARD L 



g 8 IIS §188811 ill! 1 ! 



- 1 ' I ' I ' I 'M I IM ' M 'I' K ' I i I 



* tn w f. « « S 



I i I i I i I i Mil 



Price 60 cents (per pad of 50) 



Wmhinslon. 0.C, published H*y, 1920, it Nydrographtc Office, 

 under the authority of the SECRET ARV OF THE NAVY 



FIGURE 35. 



Hm Pubutition: *th. Ed, Apr, 1938 



4th. Edition. April 1938 



No. 2065 n) 



69 



