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Production and agricultural use of sodium nitrate
Parasites and parasitic diseases of horses
Preservation of fruits and vegetables by commercial dehydration
Government forest work
Cocklebur
Picking maturity of apples
Preservation of food. Home canning, preserving, jelly-making, pickling, drying
Varieties of fruit recommended [for commercial planting
Collection and care of botanical specimens
The puss caterpillar and the effects of its sting on man