State Board of Forestry. 69 



Shellback hickory (Hicoria ovata (Miller) l^ritton). 



Birch (Betula nigra L.). 



Beech (Fagus grandifolia Ehrhart). 



Chestnut (Castanea dentata (Marshall) Borkh.). 



White oak (Quercus alba L.). 



Scarlet oak (Quercus coccinea Muench.). 



Chestnut oak (Quercus Prinus L.). 



Red oak (Quercus rubra L.). 



Black oak (Quercus velutina Tjainarck). 



White elm (Ulmus americana L.). 



Yellow poplar (Liriodendron Ttilipifera L.). 



Red or sweet gum (Liquidambar Styraciflua L.)- 



Sycamore (Platanus occidentalis L.). 



Black or sour gum (Nyssa sylvatica Marshall). 



White ash (Fraxinus americana L.). 



Ten trees of each of the above species were cut and a disk four 

 inches thick was taken from a point 4 J feet above the ground. 

 Credit should be given to Mr. Ambrose Waltman, custodian of the 

 State Forest Reserve, for his skillful selection of the individual 

 trees for cutting and his careful preparation of the disks for the 

 studies. The individual trees were selected from different expos- 

 ures, different elevations and different soils where it was possible, 

 in order to secure average conditions as nearly as might be. 



The following record was made for each specimen, the sheet 

 being taken at random : 



Tree Number 48. 



Species. — Shellbark Hickory. 



Character of Soil. — Sandy loam. 



Depth of Soil. — About four feet deep with shale bottom. 



Exposure. — In ravine. 



Associate Trees Within a Radius of Fifty Feet, Arranged in 

 Order of Abundance. — 1 black oak, 3 white oaks, 1 ash, 3 shell- 

 bark hickories. 



The Size of Associate Trees. — 3/7 inches; 3/10 inches; 1/14 

 inches; 1/16 inches. 



Total Height of Tree. — Seventy-nine feet. 



Diameter at 4J feet, 12.2 inches; 8^ feet, 12.2 inches; 12^ feet. 

 12.1 inches; "[6^, feet, 12 inches; 20i feet, 11.9 inches; 24| feet, 

 10.9 inches. 



