11 



versity of California, both the l>iologist and the chemist of the Committee had the 

 privilege, for Committee work, of the extensive facilities of the University labora- 

 tories in their respective sciences. 



Four test stations were maintained by the Committee, where specimens of wood 

 treated with different oils or oil fractions were imder regular observation, in exposure 

 to borer attack. These stations were at State Harbor Commission Pier 7, San Fran- 

 cisco, the Oakland Mole, the Mare Island Navy Yard, and the California & Hawaiian 

 Sugar Refining Company piers, Crockett. A supplemental station was later added 

 at Fisherman's Wharf, on the -San Francisco water front, nearer the Golden Gate. 

 (See frontispiece.) 



Eight salinity stations were maintained, at Avon, Bulls Head Point, Martinez, 

 Port Costa, Crockett, Black Point, Greenbrae and Tiburon, from which samples of 

 water, in some cases at both high and low tide, were taken and were analyzed for 

 salinity. 



NATIONAL RESEARCH COUNCIL COOPER.ATION 



The San Francisco Bay Marine Piling Committee initiated the movement which 

 resulted in the organization of a special Committee on Marine Piling Investigation 

 by the National Research Council, which was intended to act as the guiding and 

 correlation center for widely distributed investigative activities in this direction, to 

 be undertaken by cooperating agencies at nian>' marine centers of the ITnited States, 

 as well as to form a medium of contact between such acti\ities in the United States 

 and other countries. In furtherance of that object this Committee enlisted for its 

 specifically scientific acti\ities the service of an Advisory Committee composed of 

 men of high scientific rank and attainments, appointed by the President of the llni- 

 versity of California from the faculty of that institution, in order to provide for this 

 work the authoritative scientific guidance required as a condition of its sponsorship 

 by the National Research Council. This Committee was composed of the following 

 members : 



C. B. Lipman, Professor of Soil Chemistry and Bacteriology, Chairman. 

 C. W. Porter, Associate Professor of Chemistry. 

 C. Derleth, Jr., Dean, College of Civil Engineering. 

 J. S. Burd, Professor of Agricultural Chemistry. 



C. A. Kofoid, Professor of Biology- 

 Walter Mulford, Professor of Forestry and head of the Division of Forestry. 



D. R. Hoagland, Associate Professor of Agricultural Chemistry, Secretary. 



Upon the organization of the Committee on Marine Piling Investigations of the 

 National Research Council, the San Francisco Committee became affiliated with it 

 and thus, in addition to carrying on its own specific work, it functioned as the Cali- 

 fornia coast collaborator of the National Research Council in this work. This Com- 

 mittee made regular biological examination, for the Council, of test samples of wood 

 exposed in Los Angeles and San Diego harbors as well as of those from eleven Pacific 

 Ocean stations outside the United States proper. A tentative marine borer recon- 

 naissance was also made of the harbors of Los Angeles and San Diego, with some 

 remarkable results. 



