TABLE 3. [Page 23 
Difference of Latitude and Departure for 3° (177°, 183°, 357°). 
Lat. Dep. 
480.3 | 25.2 
481.3 | 25.2 
482.3 | 25.3 
483.3 | 25.3 
484.3 | 25,4 
485.3 | 25.4 
486.3 | 25.5 
487.3 | 25.5 
488.3 | 25.6 
489.3 | 20. 
46 | 545.3 | 28.6 
23 
12 
2 
2 
490.3 | 20. 550.2 | 28.8 
491.3 | 25. 551.2 | 28.9 
492.3 | 25. 552.2 | 28.9 
493.3 | 25. 503.2 | 29.0 
494.3 | 25. 504.2 | 29.0 
495.3 | 26. 555.2 | 29.1 
496.3 | 26. 556.2 | 29.2 
497.3 ; 557.2 | 29.2 
498.3 558.2 | 29.3 
499.3 559.2 | 29.3 
500. 3 560.2 | 29.4 } 
501.3 561.2} 29.4 
502. 3 562.2 | 29.5 
503. 3 563.2 | 29.5 
504. 3 564.2 | 29.6 
506. 3 565.2 | 29.6 
506. 3 566.2} 29.7 
507.3 567.2 | 29.7 
508. 3 568.2 | 29.8 
509. 3 569.2 | 29.8 
510.3 570.2 | 29.9 
511.3 571.2 | 29.9 
512.3 572.2 | 30.0 
513.3 573.2 | 30.0 
514.3 574.2 | 30.1 
516.3 575.2 | 30.1 
516. 3 576.2 | 30.2 
517.3 577.2 | 30.3 
518. 3 578.2 | 30.3 
519.3 579.2 | 30.4 
520. 3 580.2 | 30.4 
521.3 581.2 | 30.5 
522. 3 582.2 | 30.5 
523. 3 583.2 | 30.6 
524.3 584.2 | 30.6 
525. 3 585.2 | 30.7 
526. 3 586.2 | 30.7 
527. 3 587.2 | 30.8 
528. 3 588.2 | 30.8 
529. 3 589.2 | 30.9 
530. 3 590.2 | 30.9 
531.3 591.2 | 31.0 
532. 3 592.2 | 31.0 
533. 3 593.2 | 31.1 
534, 3 594.2] 31.1 
530. 3 595.2 | 31.2 
536. 3 596.2} 31.2 
537. 3 597.2 | 31.3 
538. 3 598.2 | 31.3 
539. 3 599.2} 31.4 
In Plane Sailing. 
For converting Dep. into Diff. Long. and Diff. Long. into Dep. 
In Middle Latitude soins me ee a 
For converting Dep. into Diff. Long.and Diff. Long. into De. 
In Mercator Sailing. Wie eae: aes ne 
For multiplication of numbers by sines and by cosines, or 
solution of plane right-angled triangles. 
