L. J. Smith

1881

• Aircraft flight test data processing
• An economical farm level
• Barn ventilation
• Canadian who's who in gun collecting
• Electricity on the poultry farm
• Essentials in Mechanical Drawing
• Farm irrigation pumping systems
• Farm shops for the state of Washington
• Irrigation west of the Cascades
• Pasture irrigation
• Plains for farm buildings
• Public road passenger transport