266 



ADAMS : RAYLEIGH-ZEISS INTERFEROMETER 



L, P, 



C, 



R, 



R. 



O 



Fig. 1. Diagram of optical arrangement of interferometer; the two inter- 

 fering beams are separated and reunited in (a) by two lenses, in (h) by a single 

 lens. 



»■ 



f 





ly 



[ 





I 

 Ifl 



R2 



M 



Fig. 2. Drawing in plan (below) and elevation (above) of the Zeiss Water 

 Interferometer. 



