Title: Gurōbaru shakai o aruku
Subjects: Whaling, History, Food habits, Whales, Shokuseikatsu-Rekishi, Kujira, Nihon-Rekishi-Shōwa jidai(Senkyūhyakuyonjūgonen igo), Social conditions, Nanaoshi-Fūzoku, Notojima, Nawatorugo, Erusarubadoru, Gengo seisaku