Illumination : its distribution and measurement / by Alexander Pelham Trotter.
- Trotter, Alexander Pelham.
- Date:
- 1911
Licence: In copyright
Credit: Illumination : its distribution and measurement / by Alexander Pelham Trotter. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
302/324 (page 274)