GEOLOGICAL AND ECONOMIC 8UI: 



PLATK IX 





Type of wood from lower part of >tem in old field -tnixl The coarr rrsirn-d renter indicate* large 

 knoli. This tree became codominant or intermediate when about three inches on the radius. The 

 diameter growth a ) O w on account of the crowding and the stem cleaned of branches. It was 

 iolat<ii by thinning when three and one-half inches on the radius. The stem at that time resembled 

 that of ont of the isolated trees ahown on Plate XVI. Aa a result of thU thinning the growth during 

 the i-:t ten yeam haa been at the rate of one inch in diameter every three year*. While the wood 

 formed since thinning ia coarae grained, it i* clear and free from knot*. The large amount of hard 

 summerwood i characteristic for flatwooda soils. (Author's illuMration ) 



B. Characteristic wood from lower logs of treea in mixed stand*, medium fine and even grained. The crown 

 of this tree overtopped the hardwoods when it waa about sixty years old (at 3.3 inches on the radius). 

 Since thia period the diameter growth has been at the rate of one inch every four years (seven and 

 one-half rings to the inch of radius). This stem in practically fre of knots for sixty feet and the 

 wood is of high quality. Nrurly the tame result can be obtained l>\ thr method of cutting which ia 

 recommended for the beat sitea which ceeka to develop the codominant and intermediate trees to form 

 the mature stand, and by gradual cutting eventually to develop the beat of the aupprwMd tree*. 

 Author's illustration.) 



TYPM or LOBLOLLY I-IXK WOOD. 



