150 



nearly every class of piling represented. The conclusions which may be drawn from 

 the service records compiled by the Committee are discussed, or necessarily implicit 

 in, the treatment of each kind of piling or piling protection concerned, in the preceding 

 Engineering Practices chapter. The comparative value lent by consecutive presentation 

 in a single statement is believed, however, to make desirable the continuance in this 

 place of the statement of conclusions presented in former reports of the Committee. 



Fig. 55. Untreated Douglas fir pile from 16-pile dolphin at Southern Pacific .'\lanieda Mole, driven 

 February, 1919. Removed November, 1920, on account of destruction at mud line by Bankia, Lim- 

 non'a and Teredo. 



