Page 58] TABLE 3. 
Difference of Latitude and Departure for 21° (159°, 201°, 339°). 
Dist Lat. Lat. Dep. 
1 0.9 56.9 b 86. 4 
2 1.9 57.9 b 86.7 
3 2.8 58. 8 44, 87.1 
4 3.7 59.7 44, 87.4 
5 4.7 60. 7 44. 87.8 
6 5.6 61.6 45. 88. 2 
7 6.5 62.5 45. 88.5 
8 7.5 63.5 45. 88.9 
9 8.4 64. 4 46. 89. 2 
10 9.3 65. 4 46. 89.6 
11} 10.3 66.3 46. 90.0 
12} 11.2 67.2 47. 90.3 
13 | 12.1 68. 2 47. 90. 7 
14{) 13.1 69.1 48. 91.0 
15 | 14.0 70. 0 48. 91.4 
16} 14.9 71.0 48. 91.7 
17) 15.9 71.9 49. 92.1 
18} 16.8 72.8 49. 92.5 
19 | 17.7 73.8 49. 92.8 
20 | 18.7 74.7 50. 93. 2 
21) 19.6 75. 6 50. 93.5 
22} 20.5 76.6 50. 93.9 
23 | 21.5 77.5 51. 94.3 
24) 22.4 78. 4 51. 94.6 
25 | 23.3 79.4 52. 95. 0 
26 | 24.3 80.3 52. 95.3 
27 | 25.2 81.2 52. 95.7 
28 | 26.1 82.2 53. 96.0 
29} 27.1 83.1 53. 96. 4 
30 | 28.0 84.0 53. 96.8 
31} 28.9 85. 0 54, 97.1 
32} 29.9 85.9 54. 97.5 
33 | 30.8 86.8 54. 97.8 
34] 31.7 87.8 55. 98. 2 
385 | 32.7 88.7 55. 98.6 
36 | 33.6 89.6 55. 98.9 
387 | 34.5 90. 6 56. 99.3 
88 | 35.5 91.5 56. 99.6 
39 | 36.4 92. 4 57. 100. 0 
40 | 37.3 93.4 57. 100.3 
41 | 38.3 94.3 57. 100. 7 
42} 39.2 95. 2 58. 101.1 
43 | 40.1 96. 2 58. 101. 4 
44) 41.1 97.1 58. 101.8 
45 | 42.0 98.0 59. 102.1 
46 | 42.9 99.0 59. 102.5 
47 | 43.9 99.9 59. 102.9 
48} 44.8 100. 8 60. 103. 2 
49 | 45.7 101.8 60. 103. 6 
50 | 46.7 102. 7 60. 103. 9 
51) 47.6 103. 6 61. 104.3 
52] 48.5 104.6 61. 104.6 
53} 49.5 105. 5 62. 105. 0 
54] 50.4 106. 4 62. 105. 4 
55] 51.3 107.4 62. 105. 7 
56 | 52.3 108.3 63. 106.1 
57 | 53.2 109. 2 63. 106. 4 
58 | 54.1 110. 2 63. 106.8 
59 | 55.1 111.1 64. 107.2 
60 | 56.0 112.0 64. 107.5 
Dist. Dep. Dep. Lat. 
69° (111°, 249°, 291°). 
In Plane Sailing. Dist. Lat. 
Forconverting Dep. into Diff. Long. and Diff. Long. into Dep. Diff. 
Tn Middle Latitude Sailing. a eee i Long. Dep. 
For converting Dep. into Diff. Long. and Diff. Long. into Dep. 
In Mercator Salling. if. a 
™ 
For multiplication of numbers by sines and by cosines, or N. NXCos. . 
solution of plane right-angled triangles. Hypote- Side Side 
nuse. Adj. Opp. 
