THE NORTHERN HARDWOOD FOREST. 



19 



Table 7. — Growth in diameter, breasthigh, of northern hardwoods and hemlock in the 



Lake States. 1 



Average growth. 



Maximum growth. 



Minimum growth. 



02 



pq 



W 



pq 



02 



- 



pq 



m 



M 



PQ 



Years 

 20.. 

 30.. 

 40.. 

 50.. 



60.. 

 70.. 

 80.. 

 90.. 

 100. 



110. 

 120. 

 130. 

 140. 

 150. 



160. 

 170. 

 180. 

 190. 

 200. 



210. 

 220. 

 230. 

 240. 

 250. 



In. 

 0.5 

 1.2 

 1.9 

 2.7 



3.5 



4.3 

 5.2 

 6.1 



7.0 



8.0 

 9.0 

 10.0 

 10.9 

 11.9 



12.9 

 13.9 



14.8 

 15.7 

 16.7 



17.6 

 18.5 

 19.3 

 20.3 

 21.1 



In. 

 0.7 

 1.5 

 2.3 

 3.0 



3.8 

 4.6 

 5.4 

 6.3 

 7.1 



8.1 

 8.9 

 9.8 

 10.7 

 11.5 



12.4 

 13.2 

 14.1 

 14.9 

 15.7 



16.5 

 17.3 

 18.1 

 19.0 

 19.9 



In. 

 1.1 

 1.7 

 2.3 

 3.0 



3 



4.6 



5.6 



10.1 

 11.2 

 12.3 

 13.4 



14.5 

 15.6 

 16.7 



17.8 

 18.8 



19.8 

 20.8 

 21.8 

 22.7 

 23.7 



In. 

 0. 

 1.3 

 2.1 

 2.9 



3.8 

 4.7 

 5.7 

 6.7 



7.8 



9.0 

 10.0 

 11.2 

 12.3 

 13.4 



14.5 

 15.5 

 16.5 

 17.5 

 18.4 



In 

 0.9 

 1.7 

 2.5 

 3.3 



4.1 

 4.9 

 5.7 

 6.5 

 7.3 



8.1 

 8.9 

 9.7 

 10.5 

 11.4 



12.2 

 13.2 

 14.1 

 15.1 

 16.0 



17.0 

 17.9 

 18.9 

 19.9 

 20.9 



In. 

 2.2 

 3.6 

 5.0 

 6.5 



7.9 

 9.4 

 10.9 

 12.4 

 13.8 



15.1 

 16.3 

 17.5 

 18.5 

 19.5 



20.6 



21 



22.6 



23.6 



24.6 



25.5 

 26.5 

 27.5 

 28.4 

 29.4 



In. 

 1.2 

 2.3 

 3.6 

 4 



6.3 

 7.6 

 9.1 

 10.5 

 11.9 



13.2 

 14.5 



15.8 

 17.0 



18.2 



19.4 

 20.5 

 21.5 

 22.6 

 23.6 



24.7 

 25.7 

 26.7 

 27.5 

 28.4 



In. 

 1.3 



2.3 

 3.3 



4.4 



5.4 

 6.5 

 7.5 

 8.6 

 9.6 



10.6 

 11.6 

 12.6 

 13.6 

 14.6 



15.5 

 16.4 

 17.3 

 18.2 

 19.1 



20.0 

 20.9 

 21.8 

 22.7 

 23.6 



In. 

 2.1 

 3.3 

 4.6 

 5.8 



7.1 

 8.4 

 9.8 

 11.2 

 12.5 



13.9 

 15.2 

 16.5 

 17.8 

 19.1 



20.3 

 21.6 

 22.9 

 21.1 

 25.2 



26.3 

 27.5 

 28.6 

 29.7 

 30.8 



In 

 2.0 

 3.9 

 5. 

 7.6 



9.4 

 11.1 

 12.8 

 14.5 

 16.1 



17.7 



19.4 

 21.0 

 22.6 

 24.2 



25.7 

 27.2 



In. 

 2.8 

 4.3 

 5.7 

 7.0 



8.2 

 9.3 

 10.4 

 11.5 

 12.6 



13.8 

 14.9 

 16.0 

 17.0 

 18.1 



19.2 

 20.2 

 21.3 

 22.3 

 23.4 



24.4 

 25.5 

 26.5 

 27.5 

 28.5 



In. 

 3.3 

 5.1 

 6.9 

 8.8 



10.7 

 12.5 

 14.3 

 16.0 

 17.6 



19.0 

 20.3 

 21.6 

 22.9 

 24.1 



25.3 

 26.4 

 27.5 

 28.6 

 29.7 



30.7 

 31.7 

 32.7 

 33.8 

 34.8 



In. 



0.2 

 .5 



.8 

 1.1 

 1.5 

 1.9 

 2.4 



2.9 

 3.5 

 4.1 



4.7 

 5.4 



6.1 

 6.8 

 7.5 

 8.3 

 9.0 



29.7 

 10.5 

 11.3 

 12.1 

 13.0 



In. 



0.3 



.7 



1.1 



1.6 



2.2 



2.8 

 3.4 

 4.0 

 4.7 



5.4 

 6.1 

 6.9 

 7.6 

 8.3 



10.6 

 11.3 

 12.1 



12.9 

 13.8 

 14.6 

 15.4 

 16.2 



In. 



0.2 

 .4 



.7 



1.1 

 1.5 

 2.1 

 2.7 



3.4 



4.2 

 5.0 

 5.8 

 6.7 

 7.6 



8.5 

 9.5 

 10.5 

 11.4 

 12.2 



13.1 



13.9 

 14.8 

 15.5 

 16.3 



In. 



0.3 



.6 



.9 



1.3 



1.6 

 2.0 

 2.4 

 2,7 

 3.1 



3.4 

 3.8 

 4.3 

 4.8 

 5.3 



5.9 

 6.6 

 7.3 

 8.0 



8.7 



In. 

 0.1 



.4 

 . 7 

 1.0 



1.3 

 1.6 

 1.9 

 2.3 



2.7 



3.2 

 3.7 



4.2 

 4.8 



5.4 



6.0 

 6.7 

 7.5 

 8.2 

 9.0 



9.8 

 10.7 

 11.6 

 12.5 

 13.5 



In. 

 1.3 

 2.2 

 3.1 

 4.1 



5.2 

 6.3 



7.4 

 8.5 

 9.5 



10.7 

 11.7 

 12.8 

 13.8 



14.7 



15.7 

 16.6 

 17.5 

 18.4 

 19.3 



20.1 

 21.1 

 22.0 

 22.9 

 23.8 



1 Based on the following data: Sugar maple, 80 trees, Charlevoix and Kalkaska Counties, Mich., Price 

 and Iron Counties, Wis.; beech, 74 trees, Charlevoix ana Kalkaska Counties, Mich.; yellow birch, 27 trees, 

 Charlevoix and Kalkaska Counties, Mich., Price and Iron Counties, Wis.; hemlock, 186 trees Leelanaw 

 County, Mich.; white elm, 14 trees, Charlevoix and Kalkaska Counties, Mich., Price and Iron Counties, 

 Wis.; basswood, 75 trees, Charlevoix and Kalkaska Counties, Mich., Price and Iron Counties, Wis. 



Table 8. — Growth in height of northern hardwoods and hemlock in the Lake States. 1 





Average growth (total height). 



Maximum growth (total 

 height). 



Minimum growth (total 

 height). 



Age. 



a 



too 



3 



o 



PQ 



o 



.U 

 .a 



o 



a 



o 



1 



w 



a 



"3 



o 

 o 



i 



PQ 



a 



s 



02 



PQ 



o 



■U 



iS 

 O 



% 



o 



a 



IS 



w 



o 

 o 



is 



i 



PQ 



«5 

 ft 



05 



a 

 § 



M 



3 

 02 



PQ 



2 

 is 



o 

 o 



1 



w 



-a 



o 

 o 



is 



i 



PQ 



Years. 

 20 



Ft. 

 10 

 18 

 25 

 32 



38 

 44 

 49 

 54 



58 



62 

 66 

 70 



72 

 75 



77 

 80 

 81 

 83 



85 



86 

 87 

 89 

 90 

 91 



Ft. 

 13 

 21 

 28 

 33 



39 

 44 

 48 

 53 

 57 



62 

 65 

 69 

 72 



75 



78 

 80 

 82 

 83 



84 



85 

 86 



87 

 87 

 88 



Ft. 

 20 

 26 

 31 



37 



43 

 48 

 53 

 58 

 62 



66 

 69 

 71 

 73 



75 



76 

 78 

 79 

 80 

 81 



81 

 82 

 83 

 83 



84 



Ft. 

 8 

 12 

 16 

 20 



25 

 30 

 35 



40 

 44 



49 

 53 

 57 

 60 

 63 



66 

 68 

 70 

 72 



74 



Ft. 

 21 



28 

 34 

 40 



45 

 49 

 53 

 57 

 61 



64 

 67 

 71 

 73 

 76 



78 

 81 

 83 

 85 

 87 



90 

 92 

 93 

 95 



97 



Ft. 

 23 

 34 

 43 

 52 



59 

 66 



71 



75 

 78 



81 

 83 

 85 

 87 

 88 



89 

 90 

 91 

 92 

 93 



94 

 95 

 96 

 96 



97 



Ft. 

 18 

 29 

 39 



48 



55 

 61 

 67 

 71 

 75 



78 

 81 

 83 

 85 



87 



89 

 90 

 92 

 93 

 94 



96 

 97 

 98 

 99 

 100 



Ft. 

 19 

 28 

 35 

 42 



48 

 54 

 59 

 64 



68 



72 

 75 

 78 

 81 

 83 



84 

 85 

 86 



87 

 87 



88 

 89 

 90 

 90 

 91 



Ft. 

 30 

 39 



48 

 54 



60 

 64 

 68 

 71 

 73 



75 

 77 

 79 

 80 

 81 



82 

 83 

 83 

 84 

 85 



86 

 86 

 87 

 87 



88 



Ft. 

 18 

 31 

 42 

 53 



62 

 70 



76 

 82 



85 



88 

 91 

 94 

 96 

 9S 



100 

 102 



Ft. 

 32 

 44 

 54 

 63 



70 

 75 

 80 

 83 

 85 



87 

 89 

 90 

 92 

 93 



94 

 95 

 96 



97 

 97 



98 

 98 

 99 

 100 

 100 



Ft. 



7 

 10 



14 

 17 

 21 

 25 



29 



34 

 38 

 43 

 46 

 50 



54 

 57 

 61 

 64 

 66 



69 

 71 



73 

 75 



78 



Ft. 

 8 

 13 

 17 

 22 



27 

 32 

 36 

 40 

 44 



48 

 52 

 56 

 59 

 63 



66 

 69 



72 

 74 

 77 



79 

 81 

 83 



84 

 85 



Ft. 



8 

 11 

 15 



20 

 24 

 30 

 35 

 40 



45 

 50 



54 

 58 

 61 



64 

 67 

 70 

 71 

 73 



74 

 75 



77 



77 

 78 



Ft. 



6 



7 



8 



10 



11 

 13 

 14 

 15 

 17 



18 

 20 

 21 

 23 

 25 



27 

 29 

 31 

 33 

 35 



Ft. 

 16 



30 



23 



40 



30 



50 



37 



60 



70 



80 



90 



45 

 51 

 57 



62 



100 



66 



110 



120 



130 



70 

 73 

 76 



140 



78 



150 



80 



160 



170 



82 



84 



ISO 



85 



190 



87 



200 



88 



210 



220 



230 



89 

 90 

 91 



240 



92 

 93 



250 



1 Based on same data as Table 7. 

 and minimum curves. 



The measurements for white elm were too few to warrant maximum 



