Details of exhibit

Exhibition:
1911 Fifty-sixth Annual Exhibition of the Royal Photographic Society of Great Britain  
Exhibit title:
High-power Photomicrographs of Diatom  
Exhibitor:
T. W. Butcher 
Section:
V. Scientific Photography and Processes of Reproduction 
Exhibit No.:
626 
Description:
Initial magnification x 764. Slides mounted by Wm. A. Firth, Esq., and E. Leonard, Esq. Obj. 2 mm. Apochromat, N.A., 1,40. Compensating Ocular x 6. Sub. stage Condenser, N.A., O.I., 1'40. Illuminant, Liliput Arc Lamp, 8 amp. Screen, Blue + Purple. Backed Plates, Ordinary Speed (225 H. & D.). Developer: Metol-Hydrokinone. 
Exhibit type:
Photograph 
Process:
[Not Listed] () 
Award:
medal