28 



OTHER SPECIES-. 



Brief reference should be made to other species which were noted 

 in the State only as individuals or in single rows. 



White willow is planted in some of the northern counties for hedges 

 and wind-breaks. The ability of this species to sprout after repeated 

 cutting and its rapid growth result in the production of a large amount 

 of wood from comparatively few trees. 



Balsam fir is planted occasionally for ornament. As a rule it does 

 well, though a small plantation in Lee County has been a failure. 



White and Lombardy poplars are common but seldom desirable 

 because of the tendency of the former to sprout and of the latter to 

 become stag-headed. 



Hemlock, arbor vitse, and bald cypress occur as ornamental trees 

 and are usually thrifty. The same is true of slippery elm, sycamore, 

 and white birch. 



Two species to which little attention has so far been given are coffee- 

 tree and black cherry. The first is a hardy tree and well adapted to 

 shelter-belt and ornamental planting; the second is worthy of trial 

 in plantations, since its rate of growth and quality of wood make it 

 valuable. 



COMMERCIAL RETURNS. 



Table 12 brings together for the principal species the most impor- 

 tant facts relative to commercial returns. These figures are averages 

 obtained from the large tables for individual species, based on all 

 plantations which have had such treatment as to justify consider- 

 ation. Plantations which show a net annual income, at 3 per cent, of 

 $4 an acre or more are regarded as commercially successful. Judged 

 by this standard, the only species which would have paid throughout 

 are catalpa, with an average return of $5.18 per acre, and larch, with 

 a return of $4.38 per acre. 



Table 12. — Average rate of growth and value of principal species. 



Species. 



Age. 



Number 

 of trees 

 per acre. 



Annual growth. 



Diam- 

 eter. 



Height. 



Annual 

 incre- 

 ment per 

 acre. 



Annual 

 income 

 per acre 

 at 3 per 

 cent. 



Hardy catalpa. 

 European larch 

 Osage orange.. 

 Black walnut. . 

 Silver maple . . . 

 White ash 



Years. 

 21 

 32 

 27 

 37 

 32 

 31 



694 

 496 

 856 

 271 

 345 

 340 



Inches. 

 0.32 

 .28 

 .18 

 .26 

 .30 

 .23 



Feet 

 1 

 1 

 1 

 1 

 1 

 1 



Cords. 

 1.35 

 1.39 

 .54 

 .90 

 1.27 



$5.18 

 4 38 

 3.13 

 1.41 

 LOS 

 1.03 



With catalpa, 10 plantations, out of 15 whose products were com- 

 puted, have paid more than $4 per acre, while two of these have paid 

 $9.35 and $16.70, respectively. Though the average indicated return 



[Cir. 81] 



