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  1. Title: Iowa crop yields 1928-1932 averages by counties bushels or tons per acre

    Contributors:

    Summary: 1 map black line ; 83 x 116 cm Negative. "Iowa state plan." "Project no. 1030."

  2. Title: Feed unit per farm production per farm by townships

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Project 1030." "1030-8."

  3. Title: Feed unit production feed units produced per acre of total land in farms by townships

    Contributors:

    Summary: 1 map black line ; 84 x 114 cm Negative. "Project 1030." "1030-6."

  4. Title: Soil erosion Iowa estimated extent of soil erosion approximate areas based on Iowa Soil Survey

    Contributors:

    Summary: 1 map black line ; 83 x 113 cm Iowa state plan. "Project no. 1030."

  5. Title: Use of farm land Iowa effective acreage, or all land in farms, less acres in forest, wasteland, buildings, roads

    Contributors:

    Summary: 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project no. 1030." "1030-22."

  6. Title: Permanent pasture & forest Iowa percent of total farm area recomended for forest or permanent pasture based on soil survey by Soils Dept., Iowa State College

    Contributors:

    Summary: 1 map black line ; 83 x 113 cm Negative. "Iowa state plan." "Project 1030."

  7. Title: Characteristics of farming areas criteria of crop, livestock, and farming systems based on group averages of county data

    Contributors:

    Summary: 1 map black line ; 83 x 115 cm Negative. "Iowa state plan." "Project no. 1030."

  8. Title: Yield of corn average yield of corn in bushels per acre, by region 1928-1932 state average 37.57

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-17."

  9. Title: Families on relief families on relief for the first seven months of 1934

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Project 1030." "1030-13."

  10. Title: Average farm size average size of farms by district, 1932

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-10."

  11. Title: Synoptical map of existing Iowa agriculture

    Contributors:

    Summary: 1 map ; black line; 84 x 113 cm Negative.; "Iowa state plan."; "Project 1030."

  12. Title: Use of crop land distribution of total land in crops into the principal crops, by region, 1932

    Contributors:

    Summary: 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project 1030." "1030-27."

  13. Title: Acreage in pasture percent of effective acreage in pasture 1932

    Contributors:

    Summary: 1 map black line ; 83 x 113 cm Negative. "Effective acreage = total farm land leass land in forest, waste, buildings, roads, and feed lots." "Iowa state plan." "Project 1030." "1030-30."

  14. Title: Gross farm income gross farm income by counties as percent of state average 1930, state average $6073.474

    Contributors:

    Summary: 1 map black line ; 71 x 110 cm Iowa state plan. "Project 1030." "1030-11."

  15. Title: Characteristics of farming areas Iowa

    Contributors:

    Summary: 1 map ; black line; 84 x 116 cm Iowa state plan.; "Project no. 1030."

  16. Title: Recommended crop changes Iowa recommended changes in acreage in corn, small grain, hay, pasture, by districts

    Contributors:

    Summary: 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project no. 1030." "1030-21."

  17. Title: Shipment of corn & oats percent net shipment of corn & oats combined to total production by regions 1928-1931

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-15."

  18. Title: Farm tenancy percent of farms operated by tenants 1900-1930

    Contributors:

    Summary: 1 map black line ; 84 x 115 cm Negative. "Iowa state plan." "Project 1030." "1030-28."

  19. Title: Report on state hospitals for mental diseases

    Contributors:

    Summary: 14, 18 leaves

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