ESTIMATING THE YIELD. 



301 



It is usual to have separate books for timber aud firewood. 

 The Range timber receipt-book should contain the following 

 columns : — 



In the remark column, entries may be made as to where the 

 lot is situated, for instance, on the upper, middle or lower road, 

 through the depot, or felling-area. 



The numbering book for firewood should run as follows : — 



2. Estimating the Quantity of Produce. 



The quantity of produce from a felling-area may be estimated 

 in different ways, according to the cubic contents, or dimensions 

 of the lots. 



(a) Each Lot a Separate Piece. — When each lot is formed by a 

 separate piece, the volume of the pieces must be estimated sepa- 

 rately, either by calculating their cubic contents, or their 

 dimensions. 



i. CuJnc Contents. 



In Germany, France, and some other countries, the cubic con- 

 tents of timber are always measured by the cubic meter, but in. 



