134 



Sub-division of the area into blocks or compartments. — The 

 degree of elaboration with which the forest has been sub- 

 divided and the crops described should be briefly explained 

 and justified. 



Example. — The working-eirde has heen sub-divided into twelve blocks, each of an 

 average area of 330 acres and with boundaries which follow either roads, ridges or 

 streams. As the forest is to be worked by the method of selection fellings, and the 

 exploitable trees are growing scattered over this area, a more minute sub-division and 

 description have not been considered necessary. 



The boundaries of the oompnrtnients are marked by deep blazes on all the 

 boundary trees ; whilst, at salient angles, earth maiiads with hardwood posts bearing 

 numbered plates, have been placed. 



Analysis of the crop. — It should be explained whether the 

 trees have been counted and measured, and whether the areas 

 containing different crops have been diflferentiated and 

 separately surveyed or have simply been estimated by eye. 

 "Where a valuation or enumeration survey has been made, it 

 should be explained whether the stock on the whole area has 

 been counted, or whether the number of trees has been cal- 

 culated from sample plots. Whatever method of analysis 

 and description has been employed should be briefly ex- 

 plained and justified. 



Example.— '^0 accurate differentiation of theeropsin each compartment has been 

 attempted, as this was unnecessary in view of the treatment to be applied. The 

 number of trees has, however, been ascertained by linear surveys run in all directions 

 thr.iugh every kind of crop. The area so surveyed amounted to 8 per cent, of the 

 area of the working- circle. The results of the enumeration are summarised in the 

 following paragraph, and the detailed figures will be found in Appendix IV. 



A brief analysis of the crop, based on any detailed de- 

 scription or on a stock map (if one has been prepared) should 

 be given. Where the number of trees has been counted or 

 estimated, totals for each size, class, kind, etc., should be 

 stated and should be supplemented in an appendix by a 

 detailed record of the survey. If the areas occupied by 

 different crops have been separately examined, the age-classes 



