| Year | 1924 |
| Date | 12-Jun |
| Volume | 50 |
| Issue | 1,207 |
| Page | 660 |
| Category | The Model Engineer and His Laboratory |
| Part | 6 |
| Title | The Testing of Oils |
| Author | A.H.Stuart |
| Notes | The properties of a lubricant, specific gravity, flash point, viscosity, how viscosity is measured, the effect of temperatures, the relation between viscosity and lubrication, viscometer, cylinder walls, bearings, air compressor, tests for impurities |