Page 72] TABLE 3. 
Difference of Latitude and Departure for 28° (152°, 208°, 332°). 
~] 
< 
n 
a 
Lat. Dep. | Dist.| Lat. 
ral 
=) 
o 
1 0.9} 0.67 61) 53.9 106. 8 b 
2 1.8) 0.9} 62] 54.7 107.7 | 57.3 
3 2.6) 1.4] 63] 55.6 108.6 | 57.7 
4 3.5] 19] 64] 56.5 109.5 | 58. 
5 4.4] 2.3] 65] 57.4 110. 4 | 58. 
6 6.3] 2.8] 66] 58.3 111.3 | 59. 
7 6.2] 3.3] 67] 59.2 112.1 | 59. 
8 7.1) 3.8} 68] 60.0 113.0 | 60. 
9 7.9} 4.2] 69) 60.9 113.9 | 60. 
| dbo) 8.8] 4.7] 70) 61.8 114.8 | 61. 
11 O78 | S25 |G 27, 115.7 | 61. 
12} 10.6) 5.6] 72] 63.6 116.5 | 62. 
13} 11.5] 6.1 9 73] 64.5 117.4 | 62. 
14) 12.4] 6.6] 74) 65.3 118.3 | 62. 
15) 13.2] 7.0] 75 | 66.2 119. 2 | 63. 
165} Ta) oo a 67. 1 120.1 | 63. 
We) USO!) bO|)) 7 |) GEEO 121.0 | 64. 
18} 15.9] 85] 78) 68.9 121.8 | 64. 
LON LONSH ie SON | 290 | GONS 122.7 | 65. 
20) 17.7] 9.4} 80] 70.6 123.6 | 65. 
PAL || SURE EST CER) | SLT ASS 124.5 | 66. 
22) 19.4)10.3} 82} 72.4 125.4 | 66. 
23 | 20.3) 10.8] 83] 73.3 126.3 | 67. 
24} 21.2) 11.3] 84) 74.2 127.1 | 67. 
Hs) || SIL | able || Sid) eal 128.0 | 68. 
26} 23.0) 12.2} 86) 75.9 128.9 | 68. 
27 | 23.8) 12.7] 87} 76.8 129.8 | 69. 
28} 24.7) 13.17 88) 77.7 130.7 | 69. 
29} 25.6] 13.6] 89] 78.6 131.6 | 70. 
30} 26.5) 14.10 90] 79.5 132.4 | 70. 
31} 27.4) 14.6] 91} 80.3 133.3 | 70. 
32) 28.3] 15.0} 92] 81.2 134.2 | 71. 
33 | 29.1] 15.5} 93} 82.1 135.1 | 71. 
34} 30.0] 16.0] 94] 83.0 136.0 | 72. 
35 | 30.9 | 16.4] 95] 83.9 136.9 | 72. 
36 | 31.8] 16.9] 96] 84.8 137.7 | 73, 
37 | 32.7] 17.4] 97) 85.6 138.6 | 73. 
38 | 33.6] 17.8} 98} 86.5 139.5 | 74. 
39 | 34.4) 18.3] 99] 87.4 140. 4 | 74. 
40 | 35.3 | 18.8] 100 | 88.3 141.3 } 75. 
41} 36.2 | 19.2] 101 | 89.2 142.2 | 75. 
42| 37.1) 19.7] 02) 90.1 143.0 | 76. 
43 | 38.0] 20.2] 03] 90.9 143.9 | 76. 
44] 38.8 | 20.7} 04] 91.8 144.8 | 77. 
45 | 39.7] 21.1} 05) 92.7 45.7 | 77. 
46 | 40.6 | 21.6] 06] 93.6 146.6 | 77. 
47 | 41.5 | 22.1] O07 | 94.5 147.5 | 78. 
48 |} 42.4 | 22.5} 08] 95.4 148.3 | 78. 
49 | 43.3 | 23.0] 09] 96.2 149.2 | 79. 
50 | 44.1 | 23.5} 10] 97.1 150.1 | 79. 
51} 45.0] 23,9} 111] 98.0 151.0 | 80. 
52] 45.9] 24.4] 12] 98.9 151.9 | 80. 
53] 46.8 | 24.9} 13] 99.8 152.7 | 81. 
54] 47.7 | 25.4] 14 | 100.7 153.6 | 81. 
55 | 48.6 | 25.8} 15} 101.5 154.5 | 82. 
56] 49.4} 26.3} 16 | 102.4 155. 4 | 82. 
57 | 50.3 | 26.8} 17 | 103.3 156.3 | 83. 
58 | 51.2] 27.2} 18 | 104.2 157.2 | 83. 
59 | 52.1 | 27.7} 19] 105.1 158.0 | 84. 
b b b 84. 
In Plane Sailing. 
For converting Dep. into Diff. Long. and Diff. Long. into Dep. 
In Middle Latitude Sailing. 
For converting Dep. into Diff. 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. 
