Page 100] TABLE 3. 
Difference of Latitude and Departure for 42° (138°, 222°, 318°). 
Dist.} Lat. Dep. =| . b ist. . b ist. . b Lat. Dep. 
179.1 } 161.3 
179.8 | 161.9 
180.6 | 162.6 
181.3 | 163.3 
182.1 | 163.9 
182.8 | 164.6 
183.6 | 165.3 
184.3 | 165.9 
185.0 | 166.6 
185.8 | 167.3 
186.5 | 168.0 
187.3 | 168.6 
169.3 
170.0 
170.6 } 
171.3 
172.0 
172.6 
173.3 
174.0 
174.6 
175.3 
176.0 
176.7 
177.3 
178.0 
178.7 
179.3 
180. 0 
180. 7 
181.3 
182.0 
| 182.7 
183. 3 
184.0 
184. 7 
185.3 
186. 0 
186.7 
187. 4 
188.0 
188. 7 
189. 4 
190. 0 
190. 7 
191.4 
192.0 
192. 7 
193. 4 
194.0 
194. 7 
195. 4 
196.1 
196. 7 
197.4 
198.1 
198. 7 | 
199. 4 
200. 1 
200. 7 
OMOWMUTUP be 
ee ee ee ee 
SRV SSSSSuSSaRESHENES 
OU bo OTC bO O10 _bD U1 CO OD O10 bY O10 bY O00 
CO 
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bo bo bo 
SAR 
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0. 
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2. 
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4, 
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7. 
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BORON S S150) G0100) 13 'S> CUES CO RO/RO = 
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cro tied Hien ao Hl CROO ROH ROP ROE ROP ROP RE RSE RE RHR ORNORNORINORNOWNOWN 
a 
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iso) 
DDD CO 9D] COND DMD OOM ON Or] WO STH bo OTD bY OUD BY] O10 B9 O10 BY OO BY OY G BY OOO Ht OT 00 Ht 100] 4 O10 Ft O10 
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POWRAOWAON AOWAOWAOWAD ON RADON DON RDO NWRBON MON AON 
Dep. Lat. ist. bs ist. i Lat. 
48° (132°, 228°, 312). 
i In Plane Sailing. 
For converting Dep. into Diff. Long. and Diff. Long. into Dep. 
In Middle Latitude Sailing. 
For converting Pee por Ord) if. 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. 
