Kodansha Academic Library, published in Showa 52 (1977), price 340 yen. A giant known for his evolutionary theory based on Kyoto University's primate studies and his niche differentiation theory based on mayfly observation, but I feel he's too great to be compared to a mountaineer. There are small spots on the edges, but the text is clean. (The obi in the photo is from a different book, so it will be removed before shipping.)