102 PRACTICAL FORESTRY. 



tents be taken the buyer would purchase the waste at 

 a price far above the value. The quarter girth meets 

 this, as already described. 



Having obtained these data, the rule for ascertain- 

 ing the cubical contents from them will be: The 

 square of the quarter girth in inches multiplied by the 

 length in feet and divided by 144. 



By the sliding scale it will be : As the lengtJTupon 

 C is to 12 upon D, so is the girth on D to the contents 

 on C. 



Tables, too, are published, but we strongly recom- 

 mend all beginners to avoid them and to keep closely 

 to their own calculations until they have become ex- 

 perienced. 



If they do not take this step they will never rise 

 above the ordinary level, which should be contrary to 

 the creed of all aspiring agents. 



Having given the rules for timber measurement, it 

 will now be necessary to apply them. For this pur- 

 pose we will proceed to carry out a valuation for the 

 sale of standing timber, may be for sale by auction or 

 for transfer on sale of land the process in either case 

 will be similar. Some measure a tree here and there, 

 and compute the rest ; some experienced men do not 

 measure at all, but set the cubical contents and value 

 by the eye alone ; others measure carefully each 

 tree. The latter plan is the most satisfactory, and we 

 strongly recommend all, especially beginners, to take 

 this extra trouble. They will be well repaid for their 

 labours by the knowledge they will possess of the 

 accuracy of their work. We do not, of course, imply 

 that every tree in the wood should be measured, as 



