FIELD AND OFFICE PROBLEMS IN 

 FOREST MENSURATION 



SECTION I— PRELIMINARY MEASUREMENTS 



PROBLEM 1. (Field.) Pacing. 



Explanation. — A great deal of the work in forest mensuration requires 

 accurate pacing. The student should therefore at the outset learn to 

 establish a distance of a surveyor's chain or mile with a fair degree of 

 accuracy. In learning to pace the student should use his ordinary walking 

 step. A longer step may be used with accuracy for short distances but 

 cannot be kept up in long distance pacing without fatigue. 



Directions. 



A. Parties. — Each man will do individual work in this problem. 



B. Equipment Required. 

 1 hand compass. 



1 100-foot steel tape. 



1 field note book supplied with Form 1. 



C. Method of Procedure. 



1. With the aid of another member of the class carefully lay off a quarter 



mile course over fairly rough country with a steel tape and a hand 

 compass. 



2. Go over the course several times using your ordinary step in order 



to determine how many double paces you take to cover the course. 

 Then adjust the number of paces you take to the quarter mile to 

 a certain even number which can readily be broken up into chains 

 and rods; i.e., 240, 250, 260, etc. After establishing a standard 

 step, go over the course repeatedly until you can cover the 

 distance with practically the exact number of your standard paces. 

 You should not be satisfied until your limit of error is within 

 3 double paces. 



