THE GROWING STOCK. 26S 



2. The Growing Stock. 



The growing wood, or the crop produced on an area, repre- 

 sents the results of the activity of the locality under a certain 

 treatment. All points which have influenced the quantity and 

 quality of the results must be ascertained, to enable the 

 forester to judge of the merits of the treatment hitherto 

 followed and the advisability or otherwise of any changes 

 in it. 



a. Method of Treatment, or Sylvicultural System. 



The different methods of treatment have been described at 

 p. 203 of Vol. I. 



In this place the forester must ascertain the system under 

 which the wood has actually been managed in the past. 



b. 



Pure woods are indicated by giving the species. In the case 

 of mixed woods, the degree of mixture must also be given ; 

 this can be done either by adjectives, such as "some," "a few," 

 or by decimals, placing the whole as 1. These decimals should 

 have reference to the area occupied by each species. 



Example : The following description 



Beech '5 

 Oak = -3 



Ash = -2 

 Maple = a few, 



would mean that J of the area is occupied by beech, "3 by oak, 

 and '2 by ash, with a few maples. 



In the case of very valuable trees, such as old oak, or teak 

 trees in Burma, it may be desirable to give their actual 

 number. The manner of admixture is expressed as "in 

 single trees," "in groups," "in strips," or "irregularly 

 distributed." 



It is also necessary to state whether the mixture is perma- 

 nent or temporary, whether it is of special sylvicultural or 



