200 



FELLING AND 



A separate column is provided for each species which is to 

 be measured. The totals are filled in when the whole wood is 

 finished. 



The calliper men must take care to keep their callipers up 

 to breast height and should read off the diameter while the 

 calliper is on the tree. The booker should repeat the figure 

 as he enters it, to prevent mistakes. The work can be done 

 with only one calliper man, but the booker can keep up with 

 two men and sometimes with three or four. If an extra man 

 is available he can keep a general look-out to see that no 

 trees are omitted. 



Each diameter class is called an inch-class. When the 

 totals for each inch-class have been made out, a sample tree 

 of exactly the right diameter is found for each inch-class. 

 This should be a tree of average height, and of good shape. It 

 is sometimes difficult to find a tree of exactly the size of the 

 inch-class if this is left to the end, arid the author has found it 

 preferable to choose these sample trees while the callipering 



