Photographs of the Total Eclipse of the Sun, August 19th, 1887, taken at Yomeiji-yama, Echigo, Japan, by M. Sugiyama, the observer of the Tokio Observatory, under the direction of I. Arai, director of the Observatory ans the Chief of the Expedition (titre original)

Sugiyama et Esaki Reiji, “Photographs of the Total Eclipse of the Sun, August 19th, 1887, taken at Yomeiji-yama, Echigo, Japan, by M. Sugiyama, the observer of the Tokio Observatory, under the direction of I. Arai, director of the Observatory ans the Chief of the Expedition (titre original),” Bibliothèque numérique - Observatoire de Paris, consulté le 10 mai 2024, https://bibnum.obspm.fr/ark:/11287/2vHvr.