Plate (folio 5, recto) from Umi no dowa

Plate (folio 4, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 6, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 7, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 8, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 3, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 5, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 9, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 10, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 3, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 6, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 8, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 11, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 13, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 7, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 12, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 5) from TAMAR

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 5) from (POEMS)

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 16) from TAMAR

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 17) from TAMAR

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 9) from TAMAR

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 11) from TAMAR

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 17) from POEMS

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 2) from (POEMS)

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Church on the Water, Tomamu, Hokkaido, Japan, Elevation and plan, sketch

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 12, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

「日誌」（昭和16～17年）

Fukuzawa Memorial Center for Modern Japanese Studies

Keio Object Hub

Fukuzensai gafu (Object)

British Museum

British Museum Collection

Smallpox illustration, Japanese manuscript, c. 1720

Wellcome Collection

Europeana API

Plate (folio 7, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 7, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Man admiring toy rabbit

Minneapolis Institute of Arts

Minneapolis Institute of Art API

ōkamadoakinaisoga

Nakai Family Ukiyo-e Collection

ARC Early Japanese Book Portal Database

Plate (folio 6, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Painting for the Burial

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

絵ハガキ（戦艦むつ）

History of the Aomori Prefecture Digital Archive

Postcards and Photos Database of Aomori Prefectural History

Writing on a Fan

Art Institute of Chicago

Art Institute of Chicago API

Plate (folio 8, recto) from Umi no dowa

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Plate (folio 11, recto) from Chu. Gyo. Kai

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

絵ハガキ（八年前の回顧）

History of the Aomori Prefecture Digital Archive

Postcards and Photos Database of Aomori Prefectural History

Toshisen ehon: Shichigon zekku (Object)

British Museum

British Museum Collection

Smallpox illustration, Japanese manuscript, c. 1720

Wellcome Collection

Europeana API

maidurunoserifu sogahouraisan

Nakai Family Ukiyo-e Collection

ARC Early Japanese Book Portal Database

「遺稿」（くちなしの花）

Fukuzawa Memorial Center for Modern Japanese Studies

Keio Object Hub

「社会経済史（高村）」（謄写版大学予科教科書）

Fukuzawa Memorial Center for Modern Japanese Studies

Keio Object Hub

Noushuukaiganryakuzu

Imizu City Shinminato Museum

ADEAC: A System of Digitalization and Exhibition for Archive Collections

Catalogue of the Kawaguchi-Takakusu Collection of Sanskrit manuscripts. Note-book 15

University of Tokyo General Library

UTokyo Academic Archives Portal

Geranium yedoënse Franch. & Sav

University of Vienna, Institute for Botany - Herbarium WU

Europeana API