On the way, he studied gunnery in a Western style private military school focusing on gunnery, Egawa juku (a Western style military school started by Tanan EGAWA, a disciple of Shuhan TAKASHIMA, a hojutsuka) in Nirayama.
途中、韮山にて砲術を中心とした西洋式の軍事の私塾である江川塾（砲術家高島秋帆の門下江川坦庵が開いた洋式軍事学校）にて砲術の研究をする。