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Short for Choujuu-Shinbutsu Giga, Choujuu Giga (鳥獣戯画) is a famous set of four Emaki scrolls belonging to the Kouzan-ji temple in Kyoto, Japan. The name translates to "Caricatures of Animals and Humans," and they are credited as the origin of right to left reading in manga and novels of Japan today.
The scrolls illustrate a group of animals bathing, getting ready for a ceremony, and playing. They have been adapted into several novels, and are believed by some to be the origin of manga.
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Literally "The Legend of Mount Shigi," this Shigisan Engi (信貴山縁起) is a picture scroll that depicts the miracles worked by a 9th century Buddhist monk Myoren. Like Choujuu Giga, there are many who think this work from the 12th century is the origin of modern manga.
Resources in Ohio State's Library Catalog
Emakimono no kenchiku o yomu by Koizumi Kazuko, Tamai Tetsuo, Kuroda Hideo hen
Chōjū giga by Kushida Magoichi kaisetsu
Catalog Search on Shigisan Engi
Shigisan engi emaki by shippitsu Chino Kaori
Web Resources
Emakimono: The Art of the Japanese Painted Hand Scroll by Dietrich Seckel