140 THE GENERAt ^VORKIiS"*; SCHEMfi. 



fequalization between the yields of the various Periods, it is at leasS 

 necessary to form the Blocks in such a manner as to avoid too 

 great a fluctuation from Period to Period. This object is Tosnafly 

 attained by assigning them eqilal areas or, in some special cases, 

 areas in inverse proportion to their fertilit}'. 



Thtis by employiflg the simple procedure we bave^'describefl 

 for drawing up the Working Scheme, it is not always possible to 

 ensure a very steady yield for the whole duration of the firsts 

 Rotation ; but if each Block is regenerated in its entirety and ia 

 its right turn during the Period assigned for it, the whc^e Working 

 Circle will be found at the end of that Kotation to be composed of 

 a complete series of graduated age-classes. Such a result i» 

 ■undoubtedly one to be desired. Nevertheless it is mot to be 

 sought by exploiting any valuable crops that may exist, long 

 before they become exploitable: The reason is evide&t, for the 

 essential object to be kept in view in organising any forest is, aboT© 

 all, by fixing the successive order of the exploitations, to make the 

 most bf eScistltog crops and not to create at any price a perfect seiies 

 of crops of Well graduated ages — in other words, bring'about the 

 Normal State itself. 



That state, which tlie organisation of every forest ought to 

 endeavour to make it approach as closely as possible, is in reality % 

 pure fiction. No forest, during the course of a whole Rotation of 

 any length, can avoid escaping damage from various causes that, 

 suffice to compromise the existence of certain crops, break up the 

 terial gradation of ages, and upset some of the provisions of th& 

 Organisation Project. When, therefore, in drawing up the GeneraJ 

 Working Scheme it is found necessary to include in the sa,m& 

 Block crops of widely differing ages, it does not necessarily follow 

 that all these crops need be exploited during the course of" tlie 

 Period corresponding to that Block. 



To establish our position it is enough to cite a few illustra- 

 tive cases. 



(1 .) Certain compartmetits coiltalning young growth (seedling*, 

 thickets, saplings or youtig poles) exist side by side with the great 

 mass of e.ifploitable compartments. Both sets of eompartmenta may 

 be included in the First Block ; but the old crop."!! alone should be 



