TABLE 8. 
Difference of Latitude and Departure for 19° (161°, 199°, 341°). 
Lat. 
454. 8 
450. 7 
456. 7 
457. 6 
458. 6 
459. 5 
460. 5 
461.4 
462. 4 
463. 3 
464, 2 
465. 2 
466. 1 
467.1 
468. 0 
469. 0 
469. 9 
470. 9 
471.8 
472. 8 
473.7 
474.7 
475. 6 
476.5 
477.5 
478, 4 
479. 4 
480.3 
481.3 
482. 2 
= 
ai 
lor) 
oO 
483. 2 
484.1 
485. 1 
486. 0 
486. 9 
487.9 
488. 8 
489.7 
490. 7 
491. 6 
492. 6 
493. 6 
494.5 
495. 5 
496. 4 
497.3 
498.3 
499. 2 
500. 2 
501. 1 
502. 1 
503. 0 
504. 0 
504. 9 
505. 9 
506. 8 
507. 7 
508. 7 
509. 6 
510. 6 
WOTN OD ANOANOAWOAWORBWONWOVA ONS HE WARHORH OCH DOONAN OUINORDNOADD 
71° (109°, 251°, 289°). 
In Plane Sailing. Dist. 
For converting Dep. into Dif’. Long.and Diff. Long.into Dep. ee 
In Middle ‘Latitude Sailing. Long. 
For conversing? ep.into Dif. Long. and Diff. Long.into Dep. 
In Mercator Sailing. 
For multiplication of numbers by sines and by cosines, or N- 
solution of plane right-angled triangles. Hy DOle; 
