Scope and Content Resolution of City of Long Beach accepting survey report of Arthur L. Sonderegger, with report."City of Long Beach report on San Gabriel River, permanent plan of improvement of San Gabriel River by City of Long Beach," negative photostat, 300':1""Map of the Rancho San Pedro, finally confirmed to Manuel Dominguez, et al, surveyed under the directions of the US Surveyor General, by Henry Hancock, depy surveyor," three negative photostats, 60 chains:1 inch (1857)...