He was also introduced in a "Geijutsu Shincho" article on 'the writing of patriots in the Meiji Restoration' (Shinchosha Publishing Co., September 1999 edition), and there was also a book published by Seito Shobo in 1972 titled "Sokai Sensei Tenshojo."
『芸術新潮　特集「明治維新を筆跡でよむ志士たちの書」』（1999年9月号新潮社）にも紹介されており、また『蒼海先生篆書帖』（西東書房　1972年）もある。