He prepared or began to translate "Waran Kyokuho" (Dutch Formulary), "Waran Yakufu" (Dutch Herbalism) and "Goeki Seiyo" (Clarification of Five Liquid of Body); however, before finished them, he died.
『和蘭局方』（オランダの薬局方の翻訳）、『和蘭薬譜』、『五液精要』の翻訳に取りかかるも、未完のまま世を去る。