SPECIFIC WEIGHT OF WOOD. 



75 



Avcratu' wvight {kihi ih-if ami tjrecu), moitititn' cimUnl, timi nhrhikifi/e per ctiit of IVhitr I'ine — CoutiiiiH-d. 



V TREES 50 TO 74 YEARS OLD. 



Localitv. 



Orit;)nal 



u timber of 



trees. 



Approxi- 

 mate age 



of trees. 



l»iaraeter 



breast bi<;b 



without 



bark. 



Specific gravity 



Width of 

 rings. 



100. Moisture as 



^^: 1 t „f I in volume. 



en. weiKlit of 



drv wood. 



Lincoln County, "Wis 



Do ; 



Uo 



Chippewa County, Wis . . 



1)0 



Do 



Plymouth County, Mass . 



Do '. 



"VTorcesterCountv. Mai*8. 



Do ." 



Do 



Tears. 

 60 

 50 



52 

 C5 

 73 

 07 

 50 

 52 

 54 

 65 

 60 



Inches. 

 4.5 

 2.0 

 5.5 

 8.0 

 7.0 

 4.2 

 13.0 

 11.0 

 14.0 

 10.0 

 10.0 



1.7 

 2.9 

 1.5 

 1.2 

 4.0 

 2.8 

 3.6 

 2.4 

 2.3 



34.3 

 39.3 

 33.8 

 38.7 

 30.0 

 35.7 

 35.3 

 38.5 

 39.0 

 36. 5 

 35.5 



Average . 



36.1 



Per cent. 

 148 



122 

 84 

 121 

 112 

 106 

 93 

 103 



Per cent. 

 8.5 

 8.5 

 8.6 

 9.0 

 10.1 

 8.0 

 8.6 

 8.6 

 8.4 

 7.3 

 7.5 



8.0 



VI.— TREES 40 TO 49 TEARS OLD. 



Lincoln County, "Wis 



Do 



Marathon County, Wis . . 



Do 



Do 



Do 



Do 



Plymouth County, Mass . 



Do '. 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Worcester County, Mass. 



Do 



Do 



Merrimack County, N. H . 



Do , 



2.3 

 6.0 

 6.0 

 6.0 



2.0 



2.8 



4.0 



8.5 



9.2 



13.7 



9.5 



12.5 



10.3 



10.2 



10.0 



12.8 



9.1 



10.3 



0.6 



2.0 

 2.2 

 2.3 

 1.1 

 1.0 

 1.4 

 2.6 

 3.0 

 3.9 

 2.8 

 3.6 

 3.1 

 2.9 

 2. 7 

 5! 8 

 2.6 

 3.4 

 3.1 



Average . 



43.3 

 31.3 

 33.5 

 34. S 

 33.7 

 35.0 

 33.8 

 36.2 

 36.2 

 35.0 

 38.0 

 34.5 

 39.0 

 37.2 

 35.0 

 35.5 

 37.7 

 33.0 

 31.7 



35.3 



70 1 



102 

 162 

 173 

 149 

 124 

 105 

 158 

 76 

 95 

 93 

 81 

 108 

 89 

 104 

 103 

 106 

 118 



8.5 

 8.9 

 9.0 

 8.6 

 8.3 

 8.4 

 7.9 

 8.4 

 8.5 

 8.4 

 8.1 

 9.3 

 9.3 

 7.0 

 8.1 

 8.6 

 9.4 

 7.9 

 8.4 



8.4 



VII.— TREES 30 TO 39 TEARS OLD. 



Marathon County, "Wis . . , 

 Plymouth County, Mass . 



Do '. 



Do 



Middlesex <>ounty,Mass.. 



Do 



Do 



Worcester County, Mass. 



Do 



Do 



Do 



Do 



Do 



Merrimack County. N. H 



Do 



Do 



Do 



Do 



Do 



Do 



Average . 



4.0 

 8.3 

 9.1 

 12.0 

 U.O 

 10.8 

 10. s 

 9.2 

 11.2 

 6.5 

 10.5 

 9.2 

 7.0 

 6.8 

 7.1 

 8.2 

 9.5 

 7.5 

 9.3 

 10.3 



1.5 

 3.5 

 3.4 

 4.7 

 3.4 

 3.6 

 3.7 

 3.6 

 4.8 

 2.9 

 4.4 

 3.6 

 2.9 

 2.4 

 2.8 

 3.0 

 3.2 

 3.3 

 3.7 

 3.9 



31.3 

 36.5 

 35.2 

 35.7 

 35.2 

 33.7 

 36.0 

 36.1 

 33.6 

 35.2 

 33.0 

 35.2 

 34.5 

 38.5 

 36.7 

 36.7 

 37.7 

 32.7 

 34.5 

 30.0 



35.1 



VIII.— TREES 20 TO 30 TEARS OLD. 



Linville, N. C . . 

 Do 



Average . 



459 

 460 



22 

 26 



4.0 1 

 7.0 ! 



34.7 

 36.9 



83 



85 



164 

 156 



165 



9.4 

 10.2 



