Folder: S.F. Ships-Whalers.
Newscopy: "Back From Whaling Cruise. John Nelson at whaling gun on one of the four Oakland California trawlers which captured 156 whales during a four months cruise in Mexican waters. A six inch line attached to the harpoon is shot from the gun and holds the whale until he is hauled in and cut up. If the aim is good the whale gives up immediately, if not the whale tows the vessel until it becomes exhausted."