40 













Presslei-'s table. 











Eela- 

 tive 

 diam- 



Aver- 

 thrifty 



Very 



thrifty 



tree. 



Rela- 

 tive 

 diam- 



Aver- 

 thnfty 



Very 



thrifty 



tree. 



1 Eela- 



1 tive 



diiun- 



Aver- 

 thrifty 



thriftv 

 tree.' 



i Rela- 

 1 tive 

 -diam- 

 eter. 



Aver- 

 age 

 thrifty 



Very 



thrifty 



tree. 



eter. 



tree. 



eter. 



tree. 



eter. 



tree.' 



tree. 



2.0 



144 



156 



6.8 



42 



47 



13.2 



21.0 



24.0 



33.0 



3.2 



9.2 



2.1 



138 



150 



6.9 



41 



46 



13.4 



21.0 



23.0 



33.5 



8.1 



9.1 



2.2 



132 



144 



7.0 



40 



45 



13.6 



20.0 



23.0 



34.0 



7.9 



8.9 



2.3 



127 



139 



7.1 



40 



45 



13.8 



20.0 



23.0 



34.5 



7.8 



8.8 





122 



134 



7.2 



39 



44 



14.0 



20.0 



22.0 



35.0 



7.7 



8.6 



2.' 5 



117 



129 



7.3 



39 



44 



14.2 



19.0 



22.0 



35.5 



7.6 



8.5 



2.6 



113 



124 



7.4 



38 



43 



14.4 



19.0 



22.0 



36.0 



7.5 



8.4 



2.7 



109 



120 



7.5 



38 



42 ' 



14.6 



19.0 



21.0 



37.0 



7.3 



8.2 



2.8 



105 



116 



7.6 



37 



42 



14 8 



19.0 



21.0 , 



38.0 



7.1 



8.0 



2.9 



101 



112 



7. 7 



37 



41 



15.0 



18.0 



21.0 



39.0 



6.9 



7.8 



3.0 



98 



109 



7.8 



36 



41 



15.2 



18.0 



20.0 i 



40.0 



6.8 



7.6 



3.1 



95 



105 



7.9 



36 



40 



15.4 



18.0 



20.0 ! 



41.0 



6.6 



7.4 



3.2 



92 



102 



8.0 



35 



40 



15.6 



18.0 



20.0 



42.0 



6.4 



7.2 



3.3 



89 



99 



8.1 



35 



39 



15.8 



17.0 



20.0 



43.0 



6.3 



7.1 



3.4 



86 



96 



8.2 



34 



39 



16.0 



17.0 



19.0 



44.0 



6.1 



6.9 



3.5 



84 



93 



8.3 



34 



38 



16.5 



17.0 



19.0 



45.0 



6.0 



6.7 



3.6 



81 



91 



8.4 



34 



38 



17.0 



16.0 



18.0 



46.0 



5.9 



6.6 



3.7 



79 



88 



8.5 



33 



37 



17.5 



16.0 



18.0 ' 



47.0 



5.8 



6.5 



3.8 



77 



86 



8.6 



33 



37 



18.0 



15.0 



17.0 i 



48.0 



5.6 



6.3 



3.9 



75 



84 



8.7 



32 



36 



18.5 



15.0 



17.0 



50.0 



5.4 



6.1 



4.0 



73 



81 



8.8 



32 



36 



19.0 



14.0 



16.0 



52.0 



5.2 



5.9 



4.1 



71 



79 



8.9 



32 



35 



19.5 



14.0 



16.0 



54.0 



5.1 



5.7 



4 2 



69 



77 



9.0 



31 



35 



20.0 



14.0 



15.0 



56.0 



4.9 



5.5 



4^3 



68 



76 



9.1 



31 



35 



20.5 



13.0 



15.0 1 



58.0 



4.7 



5.3 



4.4 



66 



74 



9.2 



31 



34 



21.0 



13.0 



15. ! 



60.0 



4.5 



5.1 



4.5 



65 



72 



9.3 



30 



34 



21.5 



13.0 



14.0 ! 



62.0 



4.4 



4.9 



4.6 



63 



70 



9.4 



30 



34 



22.0 



12.0 



14.0 1 



64.0 



4.2 



4.7 



4.7 



62 



69 



9.5 



29 



33 



22.5 



12.0 



14.0 1 



66.0 



4.1 



4.6 



4.8 



60 



67 , 



9.6 



29 



33 



23.0 



12.0 



13.0 j 



68.0 



3.9 



4.4 



4.9 



59 



66 ' 



9.7 



29 



32 



23.5 



12.0 



13.0 



70.0 



3.8 



4.3 



5.0 



58 



65 



9.8 



29 



32 



24.0 



11.0 



13.0 



72.0 



3.7 



4.2 



5.1 



56 



63 , 



9.9 



28 



32 



24.5 



11.0 



12.0 



74.0 



3.6 



4.1 



5.2 



55 



62 



10.0 



28 



31 



25.0 



11.0 



12.0 



76.0 



3.6 



4.0 



5.3 



54 



61 



10.2 



27 



31 



25.5 



11.0 



12.0 



78.0 



3.5 



3.9 



5.4 



53 



60 



10.4 



27 



30 



26.0 



10.0 



12.0 



80.0 



3.4 



3.8 j 



5.5 



52 



59 



10.6 



26 



30 



26.5 



10.0 



12.0 



85.0 



3.2 



3.6 



5.6 



51 



57 



10.8 



26 



29 



27.0 



10.0 



11.0 



90.0 



3.0 



3.4 



5.7 



50 



56 ! 



11.0 



25 



28 



27.5 



9.9 



11.0 



100.0 



2.7 



3.0 



5.8 



49 



55 



11.2 



25 



28 1 



28.0 



9.7 



11.0 1 



110.0 



2.4 



2.7 



5.9 



49 



54 



11.4 



24 



27 



28.5 



9.5 



11.0 



120.0 



2.2 



2.5 



6.0 



48 



53 



11.6 



24 



27 



29.0 



9.3 



11.0 



130.0 



2.1 



2.3 



6.1 



47 



53 



11.8 



23 



26 



29.5 



9.2 



10.5 



140.0 



1.9 



2.2 



6.2 



46 



52 



12.0 



23 



26 



30.0 



9.0 



10.0 



150.0 



1.8 



2.0 



6.3 



45 



51 



12.2 



23 



26 



30.5 



8.9 



10.0 ! 



170.0 



1.6 



1.8 



6.4 



45 



50 



12.4 



22 



25 



31.0 



8.7 



9.8 



200.0 



1.3 



1.5 



6.5 



44 



49 



12.6 



22 



25 



31.5 



8.6 



9.7 



250.0 



1.1 



1.2 



6.6 



43 



48 



12.8 



22 



24 



32.0 



8.5 



9.5 



300.0 



0.9 



1.0 



6.7 



42 



48 



13.0 



21 



24 



,3.5 



8.4 



9.4 









A METHOD OF INVESTIGATING TIMBER GROWTH. 



When a forest is to be bought, sohl, or assessed, or when its timber is 

 to be cut, the questions which are to be solved relate either to its grow- 

 ing stock alone — if the forest is to be disposed of immediately — or to 

 the progress of its growth during the period for which its standing 

 timber is intended to be kept. The mastering of the methods discussed 

 on the preceding pages enables one to solve these questions with ample 

 accuracy. With additional knowledge relating to local prices on cleared 

 laud, market condition of lumber aud timber, cost of labor, transporta- 

 tion, etc., the present value of the forest, or that which it may have at 

 the exiDiration of a short i)eriod, is easily ascertained. The determina- 

 tion of the growing stock in such cases terminates the inquiries. But 

 when a forest is intended for rational management, with the expec- 

 tation of making it yield continual returns, the knowledge of its grow- 

 ing stock serves only as a guiding point from which the way toward 



