24 THE REDWOOD. 



Table 5.' — Merchaiitahle yield of Rcdvood per acre. 





Crescent City. 



Areata. 



Diameter 

 breast- 



Average 





Average 







number of 



Merchant- 



number of 



Merchfint- 



high. 



trees per 



able yield. 



trees per 



able yield. 





acre. 





acre. 





Inches. 





Board feet. 





Board feet. 



14 



17.7 



920. 4 



13.5 



702.0 



16 



6.0 



444.0 



7.0 



518.0 



18 



2.7 



291.6 



4.4 



475. 2 



20 



1.5 



234.0 



2.0 



312.0 





1.0 



188.0 



1.1 



206.8 



24 



1.0 



267.0 



. 5 



133.5 



26 



.3 



129.0 



0 



86.0 



Total 





2, 474. 0 





2, 433. 5 











Table 6 .shows the number of pile feet in trees of diameters from 18 

 to 28 inches, inclusive. It was obtained from stem analyses taken at 

 Crescent City, Areata, and Eureka. Assuming that nothing which 

 will not furnish a log 30 feet long and 10 inches in diameter at the 

 small end is available for piling, the smallest tree to contain a pile was 

 found to be 18 inches in diameter breasthigh. The table follows: 



Table 6. — Pile length of Redwood. 



Diameter 

 breast- 

 high. 



Pile 

 length. 



Diameter 

 breast- 

 high. 



Pile 

 length. 



Inches. 



Fed. 



Inches. 



Feet. 



18 



30.5 



24 



49.0 



19- 



33. 5 



25 



.52.0 



20 



37.0 



26 



.54.5 



21 



40.0 



27 



57.5 



22 



43.0 



28 



60.0 



23 



46.0 







Diagrams 1 and 2 show the relations between age and height, and 

 between age and diameter, of the Redwood examined at Crescent City, 

 Eureka, and Trinidad. 



