Please note this is a new photoduplicated reproduction, not an original. The accompanying pictures were scanned from a reprint, not the original.

As is usual with most correspondence course booklets by the International Correspondence Schools, this is richly illustrated with crisp line drawings. Contents include: 

• Definition of Valve Gear
• Principle on Which Gear Operates
• Arrangement of Simple Gear
• Position of Cranks
• Operation 
• Addition of Stem Lap
• Reversing Arrangement
• Views of Valve Gear
• Arrangement of Parts
• Use of Transmission Bar
• General Operation 
  • Positions of Reverse Lever
  • Movement Imparted by Reverse Lever
  • Movement Imparted by Eccentrics
  • Details of the Parts
  • Action of Eccentric
  • Eccentric Strap
  • The Link
  • Link Saddle
  • Link Block
  • Reverse Shaft
  • Link Hanger
  • Rocker and Rocker Box
  • Oiling Points in Valve Gear
  • Indirect and Direct Motion
  • Valve-Rod and Valve-Stem Connection
  • Position of Eccentrics
  • Indirect Motion and Outside Admission
  • Direct Motion and Outside Admission
  • Indirect Motion and Inside Admission
  • Direct Motion and Inside Admission
  • Increase in Lead 
  • Crossed and Open Rods
  • Valve Movement in Mid-Gear
• Reversing
  • Effect on Valves
  • Movement on Valves When Reversing
• Link Arc and Link Radius
• Breakdowns
  • Slipped Eccentric
  • Setting a Slipped Eccentric
  • Broken Forward-Motion Eccentric, Strap, or Rod
  • Broken Back-Motion Eccentric, Strap, or Rod
  • Broken Link Hanger, Saddle Pin, or Lifting Arm
  • Broken Link-Block Pin, or Lower Rocker Arm
  • Broken Transmission Bar
  • Broken Top Rocker Arm or Valve Rod
  • Failure of Reverse Lever
• Reason for Variation in Cut-Off
  • Single Shifting Eccentric
  • Shifting Eccentric and Valve Gear Compared
  • Change in Cut-Off
  • Cut-Off Not Affected by Decreased Throw
• Angularity of Main Rod
  • Difference Between Position of Piston on Forward and Backward Strokes
• Offset of Link-Saddle Pin
• Examination Questions