30 



Sample Plot No. 4 (Government Plot No. 7) Concluded. 



Average height, 1905, 60 feet. 

 Average height, 1914, 65 feet. 



Summary of Data. 

 Total board feet to acre, 19C5, . 

 Total board feet to acre, 1914, . . . ^ , 

 Total gain in board feet per acre, 

 Current annual gain in board feet per acre, 



. 26,760 



. 38,6,80 



. 11,920 



. 1,324 



South Lancaster, Mass. Owner, Mrs. Abbie F. Kilburn. 



History. This plantation joins that of Mr. Harold Parker, 

 only a stone wall separating the two lots. It was made by 

 Mr. Jonas Goss, and was planted in two sections, aged sixty 

 years and forty-one years, respectively. The spacing was 6 by 

 8 feet. Since that time trees of various ages have been added 

 around the edges. A survey was therefore necessary to show 

 the areas of the original lots of even aged trees, which are: for 

 the sixty-year old lot, 2.11 acres, and for the forty-one year old 

 lot, 2.02 acres. If all trees are included, the area is 7 acres, and 

 the figures given under "Treatment" were worked out on that 

 basis by Mr. W. G. Kilburn. 



Treatment. In 1908 a thinning was made under the direc- 



