◎ This is a privately published book commemorating the late Sanichiro Mizushima (chemist), compiled with memories from his family and acquaintances. ◎ Sanichiro Mizushima (March 21, 1899 – August 3, 1983) was a Japanese chemist. He was an emeritus professor at the University of Tokyo. His specialties were structural chemistry, molecular structure, and molecular science. He was a world-leading pioneer in molecular structure theory. He was a member of the Japan Academy. ◎ Born in Nihonbashi, Tokyo in 1899 as the son of the gold-leaf screen wholesaler Masumiya (the eldest son of the 9th generation San'emon Yoshifusa Mizushima). He was a pioneer of structural chemistry in Japan. He researched the stereoisomers of 1,2-dichloroethane and demonstrated the existence of trans and gauche forms. This introduced the concept of rotational isomers, which was highly regarded internationally. His research field was very broad, and he also left his mark in the field of biochemistry, such as the study of protein structure. Although he was nominated for the Nobel Prize in Chemistry in 1962, 1964, 1967, 1968, 1970, and 1971, he did not receive the award. ◉ A5 size. Comes with a slipcase. Hardcover. 159 pages. Published July 15, 1984. ◉ The image ⑩ is the table of contents. ◉ At the end of the book, there is a "Genealogy and Chronology of Ancestors" and a "Brief Biography." ◉ The cover of the book has a mottled pattern like the image ⑤ due to the refraction of light. ★ Condition - The slipcase has yellowing, noticeable spot stains, and signs of use such as tanning on the top edge. The main body has a slight musty smell of old books, but there are no particular damages or stains, and the text is generally in good condition.