10 



Table 6. — Stand, at 5.000 feet elevation, Madera County. Cal. 



TREES 1 INCH AND OVER, BREASTHIGH DIAMETER, OX 23 ACRE: 



Average number of trees per acre. 



Diameter, breast- 

 high. 



Incense 

 cedar. 



White fir. 



"Western 

 yellow 

 pine. 



Sugar 

 pine. 



Califor- 

 nia black 

 oak. 



total. 



Inches. 



Number. Number. Number. j Number. \ Number. 



Number. 



1-4. 



8.60 

 2.00 

 1.10 

 1.45 

 1.45 

 1.20 

 1.10 

 1.30 

 .86 



1.10 

 .50 

 .65 

 .75 

 .45 

 .65 

 .50 



13 



.60 



.30 



.35 



14 



1.10 



.20 



.55 



15 



.... .80 





.70 



16 



.80 



.35 



1.00 



17 



.80 



.20 



.45 



18 



.... .40 



.35 



.20 



19 



.55 



.10 



.20 



2;)... 



.55 



.30 



.35 



21 



.... .45 



.15 



.55 



90 



.... .60 



.20 



.35 



9 3 



.70 



■1 



.35 



24 



80 



.55 



25 . . 



.60 



.45 



.15 



26... 



.45 



.35 



.3-5 



27 



.35 



.30 



.45 



28 



.40 



.25 



.35 



29 



.45 



.30 



.40 



30-34 



. . . 3.30 



2.00 



2.10 



] 25 



35-39 



2.40 



1.15 



40-44 



1.80 



1.55 



1.35 



45-49 



1.15 



1.10 



1.35 



50-54 



.30 



.00 





55-59 



.10 





.10 



60-62 







65-67 





.10 



71-S4 





.05 



>.30 



.as 



.35 

 .40 

 .40 

 .25 

 .40 

 .60 

 .40 

 .15 

 .35 

 .05 

 .10 

 .25 

 .15 

 .35 

 .35 

 .20 

 .05 

 .10 

 .35 

 .20 

 .15 

 .20 



0. 05 

 .05 



.15 

 1.20 

 1.10 

 1.20 

 1.05 

 1.60 



.35 



.05 

 .10 



Total... 



Per cent 



38. 45 

 36.53 



24.60 

 23.37 



20. 65 

 19.62 



19.25 

 18.29 



2.39 105.25 

 2.19 100.00 



TREES 5 INCHES AND OVER 



, BREASTHIGH DIAMETER. 



Total 29.8.5 j 16.85 



17.95 13.95 2.25 80.85 

 22.20 \ 17.26 2.7S 100.00 



Per cent 36. 92 20. 84 





TREES 12 INCHES AND OVER, BREASTHIGH DIAMETER. 



Total... 

 Per cent . 



20.25 

 34.56 



12.25 

 20.90 



13. 75 

 23.46 



10.70 



18.26 



1.65 



2.82 



58. 60 

 100.00 



TREES 18 INCHES AND OVER, 



BREASTHIGH DIAMETER. 



Total 15.35 ' 10.65 



Percent 33.04 22.93 



10.35 9.40 0.70 

 22.28 ; 20.24 1.51 



1 

 46. 45 

 100.00 



TREES 24 INCHES AND OVER, 



BREASTHIGH 



DIAMETER. 



Total.... 



12.10 9.10 

 31.84 ! 23.95 



8.35 8.20 

 21.97 21.58 



0.25 

 .66 



38.00 

 100. 0*3 



Percent 





HEIGHT. 



Under like climatic conditions the height of a tree is an index of 

 site quality. In Table 7 varying factors, such as density and rain- 

 fall, affect the form of the tree, and though yellow pine in the Black 

 Hills has a greater height than in Arizona it is due entirely to a 



[Cir. 127] 



