| Year | 1908 |
| Date | 27-Feb |
| Volume | 18 |
| Issue | 357 |
| Page | 202 |
| Category | Electronic |
| Part | |
| Title | Recent Developments in X-Ray Apparatus |
| Author | |
| Notes | Siemens Bros' tantalum x-ray tube, protective x-ray tube stand, horse gear dynamo, A Favre & Co.'s "Bauer" X-ray tube with air cooling |