Details of exhibit
- Exhibition:
- 1907 Fifty-second Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Model showing in graphic form the progressive absorptions, measured on the Hüfner spectrophotometer, of solution of potassium permanganate of strengths 1/250 to 1/50000. Front scale, wave lengths in A.U. Scale at side gives strengths of solutions
- Exhibitor:
- J. H. Pledge
- Exhibitor 2:
- E. F. Witthams
- Section:
- Scientific and Technical Photography and its Application to Processes of Reproduction
- Exhibit No.:
- 478
- Description:
- Research Laboratory, Wratten and Wainwright, Ltd., Croydon
- Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- none
