CHAPTER VIII.

Comparison of the Curves of Translation, in Machines of which the Diameters, or Combination of Wheels Differ, of a Point taken in the same Relative Position on the Several Saddles—Consequent Concussion and Effect upon Momentum 69

Springs in Relation to the Curves of Translation, Momentum, and Concussion 80

Anti-Vibrators and Spring Forks 87

Saddles and Springs in Relation to Anatomy and Health 94

Headers or Croppers 103

Gearing Up and Down 112

The Modern Rover, or Rear-Driving Safety 117

The Side-Slip of the Safety 128

The Ladies’ Bicycle 140

Tandems and the Rational 144

Workmanship in Cycles—English and American Makers 149

Cranks and Levers and Tangent Spokes 156

Antifriction Bearings, Ball and Roller 169

Aluminum in Cycle Construction—Strength of Tubes 180

The Cycle in War—Steam and Electricity 187

Cycle Patents and Inventors 190