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complete plot of the ground will thus be obtained. work is all right, the last line AB will exactly close the figure. This plot is made on a scale of 10 chains to an inch.
1. It is required to determine the contents and plot of a piece of land, of which the following are the field notes, viz.
32. REMARK. When a bearing is due east or west, the error in latitude is nothing; the course must then be subtracted from the sum of the courses, and the remainder taken in balancing the columns of latitude. In the last example, the 3d bearing is due east, and the first term of the several proportions for error in latitude, was 132.40 — 21.25 111.15.
In like manner, if a bearing is due north or south, the error in departure is nothing; and the sum of the courses must be diminished by this course, before balancing the columns of departure.
2. Required the contents, and plot of a piece of land, of which the following are the field notes.
3. Required the contents and plot of a piece of land, from the following field notes.
4. Required the contents and plot of a piece of land, from the following field notes.
5. Required the area of a survey of which the following are the field notes.
If, in this example, we assume 1 as the principal station, the double meridian distances will all be plus, and the positive area will exceed the negative.
In balancing we shall find the error in southing to be .28 ch. and in westing .22 ch. The area is 13A. OR. 11 P. It should however be remarked, that in all the examples the answers may be slightly varied by distributing the
6. What is the area of a survey of which the following
In this survey 4 is the most easterly and 9 the most westerly station. The area is equal to 110A. 2R. 23P. may vary a little, on account of the way in which the balancing is done.
7. What are the contents of a piece of land of which the following are the field notes?
In this survey 4 is the most westerly station and 9 the most easterly. The area is 110A. 2R. 23P. The result may, however, as in the other examples, be slightly varied by the balancing.
8. What is the area of a survey of which the following are the notes?
I. To determine the contents and boundary of a piece of land, by means of offsets from the principal lines.
33. An offset is a line measured perpendicular to a course, and may lie either on the right or left of it.
At convenient points of the course AB, as a, c, and ƒ, measure the offsets ab, cd, fg. Then, having measured