The Library holds a set of beautiful Japanese shell books in its Mollusca collection.
The book is Kai Chigusa, but is more commonly known as Kai sen shu (or The Illustrations of a Thousand Shells in English) by Yoichirō Hirase (1859–1925), and was produced from 1914-1922.
Hirase was a Japanese conchologist who assembled the largest collection of shells in Japan at the turn of the century, and established his own shell museum (the Hirase Conchological Museum) in Kyoto from 1913 to 1919. His son Shintarō Hirase (1884–1939) was also a Japanese malacologist, who taught at Seikei College.
The book is comprised of four volumes, and each volume is an ‘orihon’ folding book. Orihon is a traditional bookmaking technique that consists of a long strip of paper that is written on one side and then compacted by folding in zig-zag, or concertina, fashion. The style originated in China, but was later developed in Japan, where it is primarily associated with Buddhist works or picture books.
Each of the four volumes has roughly 100 illustrations of shells, resulting in 400 illustrations in total. There is a theory that Hirase originally planned to produce 10 volumes, each with 100 illustrations, and that would have resulted in the ‘One Thousand Shells’ of the English title.
All the illustrations are hand-coloured woodcuts, Hirase chose this technique, rather than the more common lithography of the time, because he wanted the work to be of interest to artists.
The text is kept quite minimal, as they are predominantly picture books, but the preface is in Japanese, and the plate lists are bilingual, in Japanese and English.
The first three volumes are quite rare, volume one was commissioned in 1914 to commemorate the first anniversary of his Conchological Museum. Volumes two and three were produced a year later in 1915. Then there was a delay in the production of volume four, and it was not issued until 1922. Copies of volume four are now very rare, and it is believed by many that it was not produced in as many numbers as the first three.