5o8 



forestry Quarterly. 



YIELDS OF AGRICULTURAL CROPS. 



{Thirteenth Census.) 



Xortheast 



Southeast 



Northeast 



Southeast 



Corn, bushels per acre. 

 Wheat, bushels per acre. 

 Potatoes, bushels per acre. 

 Hay, tons per acre. 

 Apples, bushels per bearing tree. 

 Peaches, bushels per bearing tree 



Northeast 

 vSoutheast 

 Northeast 

 Southeast 

 Northeast 

 Southeast 

 Northeast 

 Southeast 



COMPARISON OF TREE GROWTH. 



Volume 

 ill 30 years. 



Dbh. 

 in 30 years. 



White pine 



Northeastern Species. 



8767 cu. ft. 10 inches 



(Southern New Hampshire, L. Margolin) 



Red spruce 5100 cu. ft. 7 inches 



(New England. L. S. Murphy) 



Southeastern Species. 



Loblolly pine 6350 cu. ft. 12 inches 



Maryland, Sterrett and Hubbard) 



Scrub pine 4650 cu. ft. 9 inches 



(Maryland. W. D. Sterrett) 



Yellow poplar 5450 cu. ft. 15 inches 



(Virginia, W. W. Ashe) 



Total height 

 in 30 years. 



70 feet 



54 feet 



87 feet 



63 feet 



83 feet 



45 bushels 

 15 bushels 



24 bushels 



12 bushels 



177 bushels 



92 bushels 



.3 tons 

 .02 tons 



.5 bushels 



.9 bushels 



.5 bushels 



.25 bushels 



No. of trees 



per acre in 



30 years. 



510 

 940 



244 

 370 

 210 



