| Year | 1919 |
| Date | 21-Aug |
| Volume | 41 |
| Issue | 956 |
| Page | 183 |
| Category | Workshop |
| Part | |
| Title | From a Workshop Notebook |
| Author | H.E.Cowley |
| Notes | Measuring three-fluted tools, testing high speed, and carbon steel drills and tools, soldering cast iron, steel or aluminium, pickling castings, to find the weight of square bar, to find the weight of round bar, alterations to blue points (prints?), making blue print paper, to improve blue-prints, white or babbitt metal bearings, calculation of pulley speeds, gear wheels |