Shokugaku keigen by Udagawa Yoan. Edo: Suharaya Ihachi, etc., 1837
The first edition was published in 1834. It is an introduction to botany written in kanbun(classical Chinese). It describes Linnaean taxonomy using 24 classes to classify plants by their roots and foliage and even covers such subjects as physiology and biochemistry. The illustrations from various Dutch books were used. It accompanies Shokugaku keigen zu with 21 color woodblock prints.