Volumes are labeled as follows: [1]. "S.I.O. #36, Original documents, Field record, July 14, 1917-September 28, 1918. (Fisheries)." [2]. "S.I.O. #37, Original documents, Field record, December 4, 1917-September 30, 1918. (Hydrographic record)." [3]. "S.I.O. #54, Original documents, Hydrographic record, 1916, Feb. 16-1919, April 7. (Pier log)." [4]. S.I.O. #55, Original documents, Hydrographic record, 1919, April 4-1920, Feb. 19. (Pier log)." [5]. "S.I.O. #65, Original documents, Field record. Shore stations, 1919-1920. (Cooperative observers: Arguelo, Hueneme, Avalon, Summerland, Pacific Grove, Elsinore)."