

© Courtesy of the C. V. Starr East Asian Library, Columbia University.
Article
一個難題, A difficult problem
却爾士福雷 Que'ershi Fulei (mentioned in article), 珍妮蓋諾 Zhenni Gainuo (mentioned in article),
Image
[No caption]
© Courtesy of the C. V. Starr East Asian Library, Columbia University.
Article
一個難題, A difficult problem
却爾士福雷 Que'ershi Fulei (mentioned in article), 珍妮蓋諾 Zhenni Gainuo (mentioned in article),
Image
[No caption]