H. Hatfield

• Amateur astronomer's photographic lunar atlas
• Automation
• Inventions and their uses in science today
• Ke xue fa ming de xin jie duan
• Quantum Theory
• The conquest of thought by invention in the mechanical state of the future
• The inventor and his world
• The Professional Housekeeping
• The psychology of children's drawings
• Thomas Mann
• What things are made of