Productivity: Field
Engraving of a steampowered combine patented in 1879.
Combine--Patented 1879
Benjamin Butterworth (ed.), Growth of Industrial Art, Washington, D.C.: Government Printing Office, 1892, 17.
An image of drip irrigation
Drip Irrigation
Image of drip irrigiation, National Gardening Association, 2005.
Grain cradle.
Grain Cradle
Gift of Mrs. Ed Klock
Haying, by Theodore Robinson.
Haying
Gift of Stephen C. Clark
Soaker Hose
Soaker Hose
Photograph of soaker hose, National Gardening Association, 2005.