ESTIMATE OF RECEIPTS AND EXPENSES. 119 



INfajor produce is subdivided into that obtained from final 

 cuttings (final yield) and that from thinnings, etc. (inter- 

 mediate yields). 



The value of major produce is ascertained by means of 

 money yield tables, which are calculated from volume yield 

 tables. 



The preparation of volume yield tables and the selection of 

 the proper table have been explained in Forest Mensuration. 

 If tables are available, the age, volume and height of each 

 wood are ascertained, and these data are used in the selection 

 of the proper yield table. If the data do not agree with any 

 table, the nearest is selected, and its quantities are modified in 

 proportion to the volumes, or heights, as the case may be, of 

 the wood in question and those given in the yield table. 



When the produce yield table has been determined, it is 

 converted into a money yield table, for which purpose the 

 local prices of the several classes of timber and firewood must 

 be ascertained. In doing this, it must be remembered, that the 

 average value of material per unit of measurement generally 

 rises with the rotation up to a certain age. 



These tables refer to fully stocked or normal woods ; hence, 

 the quantities must be modified before use, in the same degree 

 as a particular wood differs from the normal condition. In 

 some cases, a further reduction is made as a kind of insurance 

 against future events. Some authors give 10 per cent, as a 

 proper reduction. 



b. Minor Produce. 



This comprises all yields, which do not consist of timber 

 and firewood ; their amounts and values must be locally 

 ascertained. 



2. Exj^enses. 



The expenses comprise the cost of administration, pro- 

 tection, formation, harvesting, construction of roads, slides, 

 houses, taxes, etc. The amounts must be locallv ascertained. 



