Page 18] TABLE 3. 
Difference of Latitude and Departure for 1° (179°, 181°, 359°). 
Lat. Dep. } Dist. Dep. f hs Dep. . Lat. Dep. 
181.0 
182.0 
183. 0 
184. 0 
185. 0 
186. 0 
187.0 
188. 0 
189. 0 
190. 0 
191.0 
192. 0 
193. 0 
194. 0 
195. 0 
o 
ray 
SCOMONAOOKwWHe 
e 
i 
iL, 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
0. 
1. 
2, 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
. 0 
0 
.0 
0 
. 0 
. 0 
.0 
0 
0 
0 
0 
0 
0 
0 
. 0 
. 0 
.0 
2.0 
0 
0 
. 0 
. 0 
= 
b 
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i=) 
+ 
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+ 
89° (91°, 269°, 271°). 
In Plane Sailing. Dist. 
For converting Dep. into Diff. Long. and Diff. Long. into Dep. Diff. 
In Middle Latitude Sailing. Long. 
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. Hypote- 
nuse. 
