ESTIMATES AND DISCUSSION. 



85 



thorns on the trees makes it very difficult to cut them, but adds 

 greatly to the value of the hedges. 



In Table 23 the hedges are grouped first according to orientation 

 and then according to quality of situation and age. Under " Re- 

 marks" attention is called to the influences that bear upon the final 

 value and to the comparisons which most forcibly demonstrate that 

 value. 



The factor for computing the acreage devoted to an osage orange 

 hedge is obtained from Table 3. The sum of the areas used on the 

 north and south sides is 1.2691 and on the east and west sides 1.7402 

 times the height of the trees. 



TABLE 23. Osage orange estimates posts. 



The following points bear especially upon the windbreak problem: 



(1) The mile value of north-south hedges is considerably greater 

 than east-west hedges. Even when reduced to acre values, the area 

 charged having been calculated from the loss to corn crops from shad- 

 ing, the north-south windbreaks are still found to have a slightly 

 higher value. This is to be accounted for by slight error in arriving 

 at the reducing factors for the two orientations. 



(2) The post value of osage is higher than that of honey locust and 

 other species which grow on situations of the same quality. This is 



