
The SciencesJune 7, 1913
The Problem of the Small Farm Tractor, A Safety Parachute for Airmen and more
Agricultural, Mechanical, and Economical Factors that Must be Considered

The Problem of the Small Farm Tractor, A Safety Parachute for Airmen and more
Agricultural, Mechanical, and Economical Factors that Must be Considered

Making the "Tractioneer"
The Successor of the Old-time Thresherman—Schools Where Traction Engineering and Farming are Taught—"Tractioneers" Who Earn from $100 to $200 a Month