Circa 1930s / Description on back: The main floor of this room, containing 7,800 square feet, is devoted to an exhibit of California horticulture, including valuable information on methods and localities of production covering all commercial horticultural crops of the state. The large mural painting at the end of the room is entitled "The Spirit of Progress in California." On the balcony are the agronomy exhibits including examples of all the general farm crops together with much information regarding methods and areas of production.

[This wing later became part of the California Museum of Science and Industry.]