Details of exhibit

Exhibition:
1909 Fifty-fourth Annual Exhibition of the Royal Photographic Society of Great Britain  
Exhibit title:
Photograph of the extreme red of the Solar Spectrum  
Exhibitor:
C. E. K. Mees 
Exhibitor 2:
E. Kenneth Hunter 
Section:
Scientific and Technical Photography and its Application to Processes of Reproduction 
Exhibit No.:
391 
Description:
Taken in an 8-ft. focus Littrow Spectrograph on Spectrum Panchromatic plates.
The similarity of the B and A lines, which are due to atmospheric absorption, is well shown. What is usually known as the a line has been resolved into a large group. 
Exhibit type:
Photographic equipment and supplies 
Process:
[Not Listed] () 
Award:
none