44 Forestry Quarterly. 



seedlings progresses under advantageous conditions. 



A tract of about four acres was found with three year old 

 sprouts where about 120 of the Chestnut trees of the last genera- 

 tion were of seedling origin. The usual method of, taking only 

 the three dominant sprouts from each colony was followed. The 

 growth of each tree was measured and results averaged. 



Total 11.54 " 9-25 " 



The sprouts from stumps of seedling trees made a height 

 growth during the first year of 16.45% an d during the first three 

 years of 24.7% greater than sprouts in the same situation from 

 coppice stumps of good average quality. In comparison with 

 the average growth from the predominating poor quality of 3rd 

 and 4th generation coppice stumps, the sprouting capacity of seed- 

 ling stumps becomes more striking. 



Comparison of Height Grozvth of Chestnut and Associated 

 Species. 



(a) Chestnut and Red Oak (Q. rubra). 



Because of their frequent association in mixture and general 

 similarity in sprouting, a comparison of these species is of in- 

 terest. The results averaged below were obtained from a long 

 list of measurements taken on a number of different plots, all 

 representing, however, practically the same conditions, viz., aver- 

 age hardwood type site II. Mixture of two species about equal 

 and composing about 50% of the stand. Only the three dominant 

 sprouts in each colony are considered. 



Period. Chestnut. Red Oak. 



1st year 5.69 feet 3.77 feet 



2nd " 2.62 " 1.69 " 



Two years (total) 8.31 " 5.46 " 



During the first year the ratio of growth of Chestnut to Red Oak 

 is 100:66; during the second year, the ratio is 100:64. The 

 Red Oak decreases faster in rate of growth during the second 

 year than does the Chestnut. The wide difference between these 



