350281 



INTRODUCTION 



TT^ORESTRY is becoming recognized in this country 

 as a specialized business just as farming is or any 

 similar enterprise. It calls for the use of land for 

 continuous production of crops of economically valu- 

 able species of trees, with attention to both volume 

 and quality. 



Forests in many cases can be so managed that they 

 will yield regular income or profit. To do so, it is 

 essential that the productive capacity of the forest be 

 maintained at the highest practicable level. The 

 enterprise involves growing more wood and better 

 wood that will bring higher prices. If the timber 

 stands are run down, they must be built up in order 

 to increase the forest capital so that greater future 

 returns are possible. 



Forests, by and large, under proper management 

 can be made to yield financial returns comparable 

 with those from other properties requiring long-term 

 investments. Always there has been a demand for 

 forest products. Never has there been an oversupply 



5. — White pine planted on the Eli Whitney Forest, New Haven, 

 Conn., in 1913. A thinning was made in 1929 in which 4 cords 

 per acre, mainly of small, intermediate, and suppressed trees 

 plus a few that were large and poorly formed, were removed. 

 The second cut removed 1,800 board feet per acre. The tvhole 

 operation made a stumpage return of S3 a thousand feet. Costs 

 were high, however, because of the small size of material han- 

 dled and the difficulties of making a partial cutting in dense 

 stands. (Courtesy of Yale University.) 



6. — Norivay spruce plantation on the Eli W hitney Forest, New 

 Haven, Conn. Planted in 1913 with 3-year transplants on deep, 

 loamy soil, formerly cultivated, the trees have made excellent 

 growth. The calipered tree in the center is 8.6 inches in diam- 

 eter and about 50 feet tall. In 1930 the volume was estimated 

 at 1,060 board feet per acre. Selected trees have been pruned 

 to insure one clear log. No thinnings, except removal of a few 

 Christmas trees per acre, have been made. (Courtesy of Yale 

 University.) 



7. — Thinning and improvement cutting in an even-age hardwood 

 stand, Eli Whitney Forest, New Haven, Conn. The photo- 

 graphs illustrate the appearance of a 45- to 50-year-old stand: 

 A, Before; and B, After a thinning and improvement cutting to 

 favor the white ash. In some portions of the area nearly 17 

 cords per acre were removed, but in the white ash group in the 

 center foreground cutting was much lighter. 



