involved in the biological phase of the slu(l\-, it was seen that certain clefinitel>' out- 

 lined experimental work would be necessary. The importance of uniformity in that 

 work and the fact that much of it would have to be done by widely scattered co- 

 operators made necessary the careful preparation by the Committee of a manual of 

 instructions covering the methods to be followed in the determination of salinity, 

 the placing of test specimens, the preparation and preservation of biological and other 

 specimen material and in the collection and submission of reports and photographs. 

 The form of the questionnaire will be found in Appendix A, and the instructions in 

 Appendix B. 



In the work of the sur\ey engineers, besides that of a reconnaissance and survey 

 character, arrangements were made wherever possible for the pulling of piles, and 

 every opportunity possible was taken to witness such pulling where alterations or 

 repairs were in progress. Meanwhile an attempt was made to gather all the informa- 

 tion available from the files of cooperating companies and other agencies, both public 

 and private. 



The work of the year 1920 was reported to the American Wood- Preservers' 

 Association at its Seventeenth Annual Meeting in .San Francisco on January 26, 

 1921. It clearly demonstrated how large was the field upon which the in\estigation 

 had entered, and how urgently necessary was not only the continuance of the sur\'ey 

 but the extension of the work in the field of research, in order that its largest possible 

 results might be realized. This led to a continuance of the authorization by the 

 Association. 



The Committee for the following year, on assuming its duties, concluded that 

 adequate results could not be secured b\' an in\estigation continuing for less than 

 three years farther. It also decided that, in addition to such engineering assistance 

 as should prove necessary, the fundamental nature of the biological and chemical 

 problems warranted the employment of both a biologist and a chemist for full time 

 on the Committee work. On this basis the Committee solicited financial support in 

 the amoimt of $30,000. That such a volume of work has been carried on through so 

 long a period, and really significant results accomplished, on resources so meagre 

 compared to the expenditures of most similar enterprises, has been due to the fact 

 that the Committee has had no overhead expense, quarters and all administrative 

 and supervisory services having been contributed gratis and the entire expenditures 

 going into productive etTort. 



ITpon the organization of the 1921 Committee it was, for the better conduct of 

 the se^•eral phases of the work, di\ided into sub-committees as follows: 



Executi\'e 



Finance 



Service Records 



Wharf Construction 



Protections 



Chemical 



Specifications 



Biological 



Salinities 

 This subdivision of work resulted in more efTecti\e utilization of the interest and 

 energy of the large membership composing the main Committee than could have been 

 accomplished otherwise. The Committee employed , year-long, a biologist and a 

 chemist. During the latter part of the year also a competent engineer was employed 

 on the work of the Service Records Sub-Committee. 



