EXAMINATION OF TIMBER. 45 



these data, so that compartment maps are unnecessary, the com- 

 partments being indicated by dotted lines. This map should be 

 drawn to a scale of not less than 4 inches to the mile. 



Large tracts require location maps on a small scale, showing 

 only the outline of the proposed cutting, the section lines or other 

 location points, the private lands, if any, and dotted lines to rep- 

 resent the accompanying compartment maps on a larger scale. 

 The latter may then be numerous and large enough to show 

 necessary detail. 



The proposed cutting area, as recommended by the examining 

 officer and covered by his estimate and description, whether or 

 not he agrees with the applicant, must always be clearly defined 

 on the map; so must every part for which there is a separate esti- 

 mate, description, or recommendation. 



DESCRIPTION AND ESTIMATE. 



Always estimate the timber upon the definite cutting area rec- 

 ommended and show r n on the map. An average for any other 

 area of which this tract forms a part is insufficient. 



If uncertain conditions of sale or differences between the forest 

 officer and the applicant make it likely that the area recommended 

 may be extended or reduced, then estimates for both the larger 

 and smaller area are required. Otherwise the cutting area should 

 be fixed and estimated by itself, without reference to other lands, 

 whether in the same section or quarter section or not. 



Survey lines, surrounding forest, and topography will be shown 

 on the map, but the estimate sent in ordinarily need not cover 

 any land not in the cutting area. In many cases, however, where 

 applications for adjoining timber are expected and where the whole 

 body can be most economically examined at one time, the estimate 

 may with advantage include a larger area, so that subsequent sales 

 can be made at once without further examination. In such cases 

 the tract must be divided into compartments, which should be 

 determined not by legal subdivisions but by the natural boun- 

 daries of logging operations, such as ridges and streams, open 

 lands, unmerchantable forest, etc., which will form the limits of 

 successive sales. A separate description and estimate must then 

 be submitted for each compartment. The same method should 

 be followed in estimating large bodies of timber which are to be 



