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. E. D. W. D.

Note. Observe the above proportion, in finding the bearing and distance

of all lines required, as above

EXAMPLE 7.

In the following survey, the corner at A is inaccessible, occasioned by the overflowing of water; but it being a tree, it can be seen from the adjacent corners B and L ; I therefore set my instrument at B, and take the bearing to A, which I find to be S. 51° F. This 1 reverse, and 1 E. place it as the first bearing in my field book, viz. N. 51°

4

W. then proceed and take the several bearings and distances to L; and from L, I find the bearing to A is S. 20 W. which I put for the last bearing in my field book, as under exemplified.

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