898 JOURNAL OF FORESTRY 



tional diameters and odd heights. The volvime of the smallest trees 

 was determined empirically. 



Finally, for lo selected trees the number of years required to grow 

 the last inch of diameter was determined at the time of making the 

 stem analyses and found to be 6 years. The average d. b. h. of these 

 trees was 8 inches. By Pressler's formula, using the square of the 

 diameters (for rough and ready results), the c. a. i. per cent proved to 

 be 4.4 per cent, which compares closely with the results given above 

 by Professor Bentley. Using volumes, the result is 5.15 per cent, 

 which is close to the value in the above table. 



A. B. Recknagfl. 



