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Forestry Quarterly. 



measurements on 21 of them showed that the average taper of the 

 first log was 2.6 inches; of the second 1.6; of the third 1.3; and 

 of the fourth 2.5 inches. 



Form Factors and Form Quotients. 



For 118 stems the form quotients were obtained by dividing 

 the diameters at the middle point by the diameters at breast 

 height. The quotients obtained were then plotted to a large scale 

 on cross-section paper and averaged up by means of a regular 

 curve. 



In a similar manner the form factors for 113 stems were plotted 

 and averaged up by means of a curve. As the two curves have 

 practically the same shape, this suggests the possibility of a con- 

 stant difference between the form quotients and form factors for 

 trees of different diameters. The following table shows the 

 form quotients, form factors and differences for trees ranging 

 from seven to twenty-four inches in diameter: 



From the last column of this table it will be seen that the 



