50 



Table II.— 



[Ultimate breaking stress 



Recommended 



Authority. 



Chas. H. Haswell . . , 

 John C.Trautwine 

 Robert H.Thurston 

 Louis De C. Berg ... 



F. E. Kidder 



Malverd A. Howe. . . 

 II. T. Bovey 



A. L. Johnson 



W. M. Patron 



a - 



m 

 P. 



A 

 A 

 A 

 A 

 A 

 A 

 M 



W 



A 



Description. 



White pine 



White pine 



White pine 



White pine 



White pine 



White pine 



Canadian^ >ttawa) 

 white pine. 



White pine 



White pine 



Tension. 



With grain. 



Limits. 



3, 000-7, 500 



Aver- 

 age. 



11,800 

 10, 000 



9, 000 



7,000 



10, 000 



Across grain. 



Lim- 

 its. 



,000 

 . 000 



A ver- 

 age. 



550 

 550 



550 



Compression. 



With grain. 



Limits. 



5, 000-7, 000 

 3, 000-6, 000 



2,800-4,500 



Aver 

 age. 



5, 775 

 6,000 



5, 500 



5,400 

 5,000 



3,500 

 9,500 



RESULTS OF 



RESULTS OF 



