Figure 13. (end) R. Bertel’s spectograph. The optical device. See image ship4014 for further discussion.
Photo Category: Oceanography - Historical instruments
| 418 x 640 | 30.74 KB | |
| 836 x 1280 | 137.14 KB | |
| 1436 x 2201 | 487.60 KB |
| Added On | 18th October 2015 |
| Viewed | 14 viewed |
| Downloads | 1 Downloaded |