Although Genpaku was also greatly interested in the books, he was also unable to purchase them himself; he asked the chief retainer of the clan who put up the funds and a last, the books were secured.
玄白も大いに興味を持ったが、彼もまた個人では買えず、藩の家老に頼み込み、代金を出してもらってやっと入手できたという。