| Year | 1917 |
| Date | 01-Feb |
| Volume | 36 |
| Issue | 823 |
| Page | 75 |
| Category | General |
| Part | |
| Title | Sphygmography: The Mechanics of the Heart |
| Author | A.H.Stuart |
| Notes | A sphygmogram, line diagram of sphygmograph, one heart beat magnified ten times, space time graph of a Stephenson's valve gear |