7 deg.E| 30 | .. |20.5 |21.9 | ..
S 11 deg. W | NE | 0 | 6 deg. E| 8 deg. W| 189 deg. | S 9 deg.W| 55 | .. |54.3 | .. | 8.6
NNW | NE | 0 | 2 deg. W| 8 deg. W| 327 deg. | N 33 deg.W| 14 |11.7 |.. | .. | 7.6
S 87 deg. E | NE | 0 | 3 deg. E| 8 deg. W| 88 deg. | N 88 deg.E| 50 | 1.7 |.. |50 | ..
NE | .. | .. | mg | 8 deg. W| 3 deg. | N 3 deg. E| 12 | 9.6 |.. | 7.2 | ..
--------+----+------+-----+-----+-------+-------+-----+-----+-----------+----
23.0 |87.1 |87.7 |16.2
.. |23.0 |16.2 |..
+-----+-----+----
.. |.. |.. |..
.. |64.1 |71.5 |..
+-----+-----+----
.. S E

Lat. left 39 deg.-46'-00" N Mid. Lat. 39 deg.
Diff. Lat. 1 -04 -06 S Dep. 71.5
----------
Lat. in. 38 -41 -54 N Table 2--Under 39 deg. Dep. in
39 -46 -00 Diff. Lat. col. = 92' = 1 deg. 32' Diff. Lo.
----------
2)78 -27 -54
----------
Mid. Lat. 39 -13 -57

Lo. left 74 deg.-06'-00" W
Diff. Lo. 1 -32 -00 E
--------------
Lo. in. 72 deg.-34'-00" W

Table 2--Diff. Lat. 64.1, Dep. 71.5.
Course S 48 deg. E--Distance 96 miles.

The rule covering all these operations is as follows:

1. Write out the various courses with their corrections for Leeway,
Deviation, Variation and the distance run on each.

2. In four adjoining columns headed N, S, E, W respectively, put down
the Difference of Latitude and Departure for each course.

3. Add together all the northings, all the southings, all the eastings
and all the westings. Subtract to find the difference between northings
and southings and you will get the whole difference of Latitude. The
difference between the eastings and westings will be the whole
departure.

4. Find the latitude in, as already explained.

5. Find the Lo. in, as already explained.

6. With the whole difference of Latitude and whole Departu