119 



coupes will be adhered to and the roads laid out in the manner 

 required, is to mark out on the ground the lines of transport. 



It rcay be useful to remtrk with regard to works cf this sort, that although 

 included in the approved workiiig-plaii, separste senotion will be reqnired for th* 

 necessary funds when the tin e for corstrnction errivf s. Anothar point, which will 

 also be dealt with in treating of the contr<'l of plans, is that the .wo'ks may often b& 

 only indicated as d> sirable, and need not be part of the permanent plan vchich cannot 

 ordinarily be departed from. 



Section VI.~ Miscellaneous peescriptions. 



1. General remarks — It may frequently be found neces- 

 sary to carry out experiments with the object of facilitating 

 revision of the working- plan on the expiry of the period 

 for which it has been prepared. Such experiment may 

 include ring counting; or the laying out of experimental 

 plots with the object of ascertaining the rate of girth and 

 diameter increment : or for the collection of data for the 

 preparation of tables ; or to test certain sylvicultural opera- 

 tions. All such experimental operations should find a 

 place in the body of the working-plan report. 



Section VII.— Pobecast of pinancial results op 



WOBKINQ. 



1. General remarks.^The working-plan should contain 

 a rough estimate of the revenue and the expenditure under 

 the proposed working as compared with the actual results 

 of the past. An attempt should in all cases be made to 

 estimate the cost of proposed works of improvement. 



when the areas to be felled have been decided upon, it will generally be necessary 

 to make a forecsst of the outturn of trees, or of material to be removed, so as to esti- 

 nriate the financial results of the proposed scheme of woiking. This estimate ma; be 

 based either on an enumeration of the mature trees in the forest, on the previous out- 

 turn, or on experimental area fellings, etc. The enumeration should not, however, be 

 mistaken for a calculation of the possibility, sach as is made when fellings are pie- 

 scribed by volume of material or number of trees. 



