EXAMPLE 2. Fig. 83. Required the area of a survey from the following field The area within the stationary lines, found by either of the rules in the preceding section, is 1152.5381 square chains. To find the area of the off-sets. 2nd Stationary Line. 3rd Stat. Line. 1. 0.00 0.55 2. 13.44 0.55 1. When all the angles of a field, or small tract of land, can be seen from two stations, either within or without it, the area may be found by means of intersections. The method of doing this will be best explained by an example. EXAMPLE 1. Let ABCDEFGA, Fig. 84, represent a field, all the angles of which can be seen from two stations H and I without it. The bearing and distance of the stations, and the bearings of all the angles of the field, from each station, being as follow, it is required to find the area. The station H bears from the station I, North, dist. 28 Ch. Draw HI according to the given bearing and distance, and from the points H and I, draw HA, HB, HC, &c.' T |