Studies in spectrum analysis / by J. Norman Lockyer.
- Lockyer, Norman, Sir, 1836-1920.
- Date:
- 1904
Licence: In copyright
Credit: Studies in spectrum analysis / by J. Norman Lockyer. Source: Wellcome Collection.
39/302 (page 21)
Licence: In copyright
Credit: Studies in spectrum analysis / by J. Norman Lockyer. Source: Wellcome Collection.