TABLE 3. 
Difference of Latitude and Departure for 4° (176°, 184°, 356°). 
Dist. | Lat. Lat Dep. Dep. 
301 | 300.3 A79.8 | 33.6 | 541 37.7 
02 | 301.3 480.8 | 33.6 37.8 
2 | 302.3 481.8 | 33.7 37.9 
04 | 303.3 482.8 | 33.8 37.9 
05 | 304.3 483.8 | 33.8 38. 0 
06 | 305.3 484.8 | 33.9 38.1 
07 | 306.3 485.8 | 34.0 38. 2 
08 | 307.2 486.8 | 34.0 38. 2 
09 | 308. 2 487.8 | 34.1 38.3 
10 | 309. 2 488.8 | 34.2 38. 4 
311 | 310.2 489.8 | 34.3 38. 4 
12 | 311.2 490.8 | 34.3 38.5 
13 | 312.2 491.8 | 34.4 38. 6 
14 | 313.2 492.8 | 34.5 38. 6 
15 | 314.2 493.8 | 34.5 38. 7 
16 | 315.2 494.8 . 6 38.8 
17 | 316.2 495. 8 SU 38. 9 
18 | 317.2 496. 8 ot 38. 9 
19 | 318.2 497.8 .8 39.0 
20 | 319. 2 498.8 50) 39.1 
321 | 320.2 499.8 ug 39.1 
22 | 321.2 500. 8 0 39. 2 
23 | 322.2 501. 8 yal 39.3 
24 | 323.2 502. 8 2 39.3 
25 | 324.2 503. 8 2 39.4 
26 | 325.2 504. 8 .o 39.5 
27 | 326.2 505. 8 . 4 39.6 
28 | 327.2 506. 8 4 39. 6 
29 | 328.2 507.8 m3) 39. 7 
30 | 329.2 508. 8 . 6 39.8 
331 | 330.2 509. 8 . 6 39.8 
32) | 331. 2 510. 8 7 39.9 
33 | 332.2 611.8 8 40.0 
34 | 333.2 512.7 9 40.0 
35 | 334.2 513.7 9 40.1 
36 | 335. 2 514.7 . 0 40.2 
37 | 336. 2 515. 7 1 40. 2 
38 | 337.2 516. 7 bal 40.3 
39 | 338. 2 517.7 BY 40. 4 
40 | 339. 2 518. 7 be 40.5 
341 | 340.2 | 23.8 519. 7 53) 40.5 
42 | 341.2 | 23.9 520. 7 4 40. 6 
43 | 342.2 | 23.9 521.7 .o 40.7 
44 | 343.2 | 24.0} 022. 7 . 6 40.7 
45 | 344.2 | 24.1 523. 7 . 6 40.8 
46 | 345.2 | 24.1 4 524. 7 LU 40.9 
47 | 346.2 | 24.2 52. 7 8 40.9 
48 | 347.2 | 24.3 526. 7 8 41.0 
49 | 348.1 | 24.3 527.7 9 41.1 
50 | 349.1 | 24.4 528. 7 .0 41.2 
351 | 350.1 4.5 529. 7 .0 41.2 
52 | 351.1 | 24.6] 530. 7 mall 41.3 
53 | 352.1 | 24.6 531.7 2 41.4 
54 | 353.1 | 24.7 § 532. 7 22 41.4 
55 | 354.1 | 24.8 | 533. 7 .3 41.5 
56 | 355.1 | 24.8 | 534. 7 w4 41.6 
57 | 356.1 | 24.9 | 535. 7 .O8 41.6 
58 | 357.1 | 25.0 536. 7 .5 41.7 
59 | 358.1 | 25.0 537. 7 .6 41.8 
60 | 359.1 | 25.1 | 538. 7 7 41.9 
Dist. | Dep. Dep. Lat. Lat 
In Plane Sailing. 
For converting Dep.into Dif’. Long.and Diff. Long.into Dep. 
In Middle Latitude Sailing. 
For converting Dep.into Dif’. Long. and Diff. Long.into Dep. 
In Mercator Sailing. 
For multiplication of numbers by sines and by cosines, or 
solution of plane right-angled triangles. 
NxXCos. | NxXSin. 
