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TABLE 3. 
Difference of Latitude and Departure for 8° (172°, 188°, 352°). 
In Plane Sailing. 
Forconverting Dep. into Diff. Long. and Diff. Long. into Dep. 
In Middle Latitude Sailing. 
Tor converting Dep. into Diff. Long. and Diff. Long. into Dep. 
# In Mercator Sailing. 
4 For multiplication of numbers by sines and by cosines, or 
solution of plane right-angled triangles. 
Dist. | Lat. Lat. Dep Lat. Dist. | Lat. Dep. 
1 ie 60.4] 8. 119.8 | 16.8 ¢ 181 | 179.2 33.5 
2 2. 61.4] 8. 120.8 82 | 180.2 33.7 
3 3. 62.4] 8. 121.8 83 | 181.2 33. 8 
4 4. 63.4 | 8. 122.8 84 | 182.2 34.0 
5 5. 64.4] 9. 123.8 85 | 183.2 34.1 
6 5. 65.4 | 9. 124.8 86 | 184. 2 34. 2 
7 6. 66.3 | 9. 125.8 87 | 185.2 34.4 
8 7. 67.3 | 9. 126.8 88 | 186.2 34.5 
9 8. 68.3 | 9. 127.7 89 | 187.2 34.7 
16 Gh GORST Eso: 128. 7 90 | 188.2 34.8 
11 LO: 70.3 | 9. 129. 7 191 | 189.1 34.9 
12} 11. 71.3 | 10. 130. 7 92 | 190.1 39.1 
13} 12. 72.3 | 10. 131.7 Oe} |} aisle a 35. 2 
14} 18. 73.3 | 10. 132.7 94 | 192.1 35.3 
15; 14. 74.3 | 10. 133. 7 95 | 193.1 39.9 
16} 165. 75.3 | 10. 134.7 96 | 194.1 35.6 
17} 16. 76.3 | 10. 135. 7 97 | 195.1 35. 8 
TRS |] Le 77.2 | 10. 136.7 98 | 196.1 35.9 
190) 18: 78.2 | 11. 137.7 99 | 197.1 36. 0 
PAD |) a8) ee || tal, 138. 6 200 | 198.1 36. 2 
21 | 20. 80.2 | 11. 139. 6 201 | 199.0 36.3 
22)| 21. 81.2 | 11. 140.6 02 | 200.0 36.5 
23 | 22. 82.2 | 11. 141.6 03 | 201.0 36.6 
24} 23. 83.2 | 11. 142.6 04 | 202.0 36. 7 
25 | 24. 84.2 | 11. 143. 6 05 | 203.0 36.9 
26 | 26. 85.2 | 12. 144.6 06 | 204.0 37.0 
27) 26. 86.2 | 12. 145. 6 07 | 205.0 37.2 
28 | 27. 87.1 | 12. 146. 6 08 | 206.0 37.3 
29 | 28. 88.1 | 12. 147.5 09 | 207.0 37.4 
5} 29) 89.1 | 12. 148.5 10 | 208.0 37.6 
~ 31) 30. 90:1 |) 12: 149.5 ; 211 | 208.9 37.7 
32 | 31. 91.1 | 12. 150.5 c 12 | 209.9 37.9 
33 | 32. 92.1 | 12. 151.5 0 13 | 210.9 38.0 
34 | 33. 93.1 | 13. 152.5 - 14 | 211.9 38.1 
35 | 34. 94.1 | 13. 153.5 ‘ 15 | 212.9 38. 3 
36 | 36. 95.1 | 13. 154.5 5 16 | 213.9 38. 4 
37 | 36. 96.1 | 18. 155.5 : 17 | 214.9 38.6 
38 | 37. 97.0 | 13. 156.5 | 22.09 18 | 215.9 38.7 
39 | 38. 98.0 | 13. 157.5 | 22.1 | 19 | 216.9 38.8 
40 | 39. 99.0 | 13. 158.4 | 22.3 20 | 217.9 39.0 
41 | 40. 100.0 | 14. 159.4 | 22.4 | 221 | 218.8 39.1 
42) 41. 101.0 | 14. 160.4 | 22.5 | 22 | 219.8 39. 2 
43 | 42. 102.0 | 14. 161.4 | 22.7 | 23 | 220.8 39. 4 
44) 43. 103.0 | 14. 162.4 | 22.8] 24 | 221.8 39.5 
45 | 44. 104.0 | 14. 163.4 | 23.0} 25 | 222.8 39. 7 
46 | 45. 105.0 | 14. 164.4 | 23.1 } 26 | 223.8 39. 8 
47 | 46. 106.0 | 14. 165.4 | 23.2 | 27 | 224.8 39.9 
48 | 47. 106.9 | 15. 166.4 | 23.4} 28 | 225.8 40.1 
49 | 48. 107.9 | 15. 167.4 } 23.5 | 29 | 226.8 40. 2 
50 | 49. 108.9 | 15. 168.3 | 23.7} 30 | 227.8 40. 4 
51 | 50. 109.9 | 15. 169.3 | 23.8 7 231 | 228.8 40.5 
52 | Ol. 110.9 | 15. 170.3 | 23.9 | 32 | 229.7 40.6 
53} 52. 111.9 | 15. 171.3 | 24.1 | 33 | 230.7 40.8 
54] 53. 112.9 | 15. 172.3 | 24.27 34 | 231.7 40.9 
55] 54. 113.9 | 16. 173.3 | 24.4 | 35 | 232.7 41.1 
56 | 55. 114.9 | 16. 174.3 | 24.5 # 36 | 233.7 41.2 
57 | 56. 115.9 | 16. 175.3 | 24.6 | 37 | 234.7 41.3 
58 | 57. 116.9 | 16. 176.3 | 24.8} 38 | 235.7 41.5 
59 | 58. 117.8 | 16. 177.3 | 24.9 | 39 | 236.7 41.6 
60 | 59. 118.8 | 16. 178.2 | 25.1 | 40 | 237.7 41.8 
Dist Dep. Dep. Lat. Dep. Lat. } Dist.| Dep. Lat. 
