The Agriculture Building and Engineering Building were both built using the same funding from the Arkansas Legislature. Completed in 1927, the Agriculture Building hosted a library, the agronomy, horticulture, plant pathology, rural economics and sociology, and entomology departments, in addition to offices. A new Plant Pathology building was built in 1978, taking some of the aforementioned departments. The two buildings are connected by a skywalk. It now contains the agribusiness and economics, agricultural and extension education, agricultural communications, and entomology departments.