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Algae in water supplies: an illustrated manual on the identification, significance, and control of algae in water supplies.

Algae in water supplies: an illustrated manual on the identification, significance, and control of algae in water supplies.

Arbor day, its purpose and observance.

Arbor day, its purpose and observance.

The church and agricultural progress.

The church and agricultural progress.

Conservation farming in the Slope-Hettinger Soil Conservation District, North Dakota.

Conservation farming in the Slope-Hettinger Soil Conservation District, North Dakota.

Contour-furrow irrigation.

Contour-furrow irrigation.

Controlling the Japanese beetle.

Controlling the Japanese beetle.

Dual-purpose pines.

Dual-purpose pines.

Dust storms come from the poorer lands.

Dust storms come from the poorer lands.

Facts about wind erosion and dust storms on the Great Plains.

Facts about wind erosion and dust storms on the Great Plains.

Forest and flame in the Bible.

Forest and flame in the Bible.

From the dust of the earth.

From the dust of the earth.

Game management on the farm.

Game management on the farm.

Grass crops in conservation farming.

Grass crops in conservation farming.

Intensive projects under the Cooperative farm forestry act.

Intensive projects under the Cooperative farm forestry act.

It could happen again.

It could happen again.

Know your watersheds.

Know your watersheds.

Legumes in soil conservation practices.

Legumes in soil conservation practices.

Making land produce useful wildlife.

Making land produce useful wildlife.

Managing farm fields, wetlands, and waters for wild ducks in the South.

Managing farm fields, wetlands, and waters for wild ducks in the South.

Managing the small forest

Managing the small forest

Meadows and pastures : formation and cultivation in the middle eastern states.

Meadows and pastures : formation and cultivation in the middle eastern states.

Mosquito remedies and preventives.

Mosquito remedies and preventives.

New landmarks of soil conservation.

New landmarks of soil conservation.

Nitrogen-fixing bacteria and legumes.

Nitrogen-fixing bacteria and legumes.

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