| Year | 1936 |
| Date | 07-May |
| Volume | 74 |
| Issue | 1,826 |
| Page | 443 |
| Category | Electrical |
| Part | |
| Title | Electromagnetic Devices. With notes on the design of magnets for the model maker and inventor |
| Author | A.H.Avery |
| Notes | Temperature rise, magnets for lifting, coil and plunger magnets |