The same Example calculated with East Meridian Dis

tance.

N Bearings. D C N. L. S. L. E. D.W. D.JEMD., N. Area. S. Area.

EXAMPLE 5.

This example has an inaccessible boundary, occasioned by the points of a lake projecting into the land, between the 3d and 4th corners; to survey which I take the Field Notes as follows, and in perches, as some surveyors are in the practice of so calculating their surveys.

ake the difference of latitude and departure, for the

three devious courses and distances, and what they want of balancing, will be the difference of latitude and departure for the distance from the 3d to the 4th corners, with which find the bearing and distance, as under specified.

No Bearings. Dist. N. L. S. L. |E. D. W. D.

Note. When calculations are made in perches, it is usual to retain but one decimal figure: and when the second is more that five, to increase the first one more.

To find the bearing from the 3d to the 4th corner,

From the 4th to the 3d corner, N. 0° 27' E.
From the 3d to the 4th corner, S. 0° 27' W.

To find the distance from 3d tó 4th corner.

The Traverse will now stand as in the following page.

No Bearings. D. P.IN. L. S. L. |E. D. (W. D.

Note. The calculation is omitted, to exercise the learner.

EXAMPLE 6.

In the following survey, the last course and distance is omitted to be taken'; but it is required to be found, and also the area of the land inclosed.

RULE.

Find the difference of latitude and departure as before, for the several courses and distances taken, and what they want of balancing, will be those of the closing line, which find by Case 6 and 7, Right Angled Trigonometry.

Stations., Bearings. D. Ch. N. L. S. L. JE. D. W. D.