re: 



adju- : the mirror M.. the light coming by 1 



path can always be l 



than that by - short so that it is 



lueed in intensity i 

 Having run throng sped - V - 



long ax; _ a from 



V . the latter is now : Through 



t this 

 azimuth of the pola: light s ares i 



sity due to the mono tor as 5 due 1 



in the : . E i stal, re setting 



are enipL stal is rotated 1 



.- 



r sets 5 one is in a posil 



the reflecting po stal with t 



of plane pol _ presenl s not desdg 



ttaek on 1 solute reflecting 



merely to tain 1 5 to these 1 



azimuths t light r to g 



one must kn iUumir : 



stanee of the s reflecting 



rhis done in sent eas sing 



- ss and on:; _ 



. ted from the s _ ss rep- 



stanl fleeting ugh t 



1 published results 1 

 In the near future t is solui 



ug powei I se and of other :-rystals a test 



confidence can be pla the reflecting powei 



throng l the sped that is as i slighl 



maxima, or minima, for tainties tching brighl 



; - 3 reg to be ob- 



tained thror._ ng and 



Hov. the fact <: - 



ng power 

 light si - this s the prime 



- reh up to 1 sen1 

 The first stal 1 was 



by sublima: tmos gen. 



- 



