Browse Items (71585 total)

• First
• Previous
• 1899
• 1900
• 1901
• 1902
• 1903
• 1904
• 1905
• 1906
• 1907
• 1908
• 1909
• 1910
• 1911
• 1912
• 1913
• 1914
• 1915
• 1916
• 1917
• 1918
• Next
• Last

Experiment 315, representative pig #9B, 1929

The left side of representative pig #9B is shown for experiment 315 lot #3.

Experiment 326, representative pig #445, 1930

The left side of representative pig #445 is shown for experiment 326 lot #11.

Experiment 326, representative pig #54B, 1930

The left side of representative pig #54B is shown for experiment 326 lot #14.

Experiment 326, representative pig #75, 1930

The left side of representative pig #75 is shown for experiment 326 lot #2.

Experiment 326, representative pig #565, 1930

The left side of representative pig #565 is shown for experiment 326 lot #14.

Experiment 326, representative pig #21B, 1930

The left side of representative pig #21B is shown for experiment 326 lot #8.

Experiment 326, representative pig #22B, 1930

The left side of representative pig #22B is shown for experiment 326 lot #6.

Experiment 326, representative pig #26B, 1930

The left side of representative pig #26B is shown for experiment 326 lot #7.

1933 Soil survey map

1933 soil survey map of Davis County, Iowa.

Tags: Davis County - Iowa, Map, Soil Survey

1943 Work Plan

Farm tests on contouring corn, soybeans, and small grain in relation to runoff, erosion, and yield.

Tags: Poweshiek County - Iowa, Work Plan

• First
• Previous
• 1899
• 1900
• 1901
• 1902
• 1903
• 1904
• 1905
• 1906
• 1907
• 1908
• 1909
• 1910
• 1911
• 1912
• 1913
• 1914
• 1915
• 1916
• 1917
• 1918
• Next
• Last