220 SVEN PETRINI [56] 



of the logs, must be respected. Valuation is made up according to a price 

 list giving the worth of the different logs with given top diameter and given 

 Jength. 



8:0. Even a forest owner who does not sell his timber on the stump hut 

 fells, bucks and delivers the logs to the buyer ought to know what dimen- 

 sions could be taken out of a certain stånd. The contract of deliverance 

 must be made before the trees are felled and the buyer ought to know the 

 probable distribution of special dimensions in a certain deliverance if he is 

 to pay the accurate value. Such people who do their own logging ought to 

 make estimates of the timber yield by the forraclass method and control these 

 estimates when the cuttings have becn made, since they must then, nevertheless, 

 ascertain the actual amount of logs of various sizes which are delivered to 

 the buyer. With such a control the method in question would soon reach a 

 point of great accuracy. Then both the buyer and the seller will profit, 

 the former by knowing what he can deliver and the latter by knowing what 

 he actually is going to buy. 



