Experiments on Polarized Rontgen Radiation. 799 



A concentrated solution in water of centrifugal sugar was 

 made, and a thin film of this solution was placed in a cell 

 8 cm. x 8 cm. x 2 mm., the walls of the cell being of thin 

 mica. In this way a film 2 mm. thick of the active sugar 

 solution was obtained, through which a considerable part of 

 the polarized beam of X-rays could be transmitted. 



The method of ths experiment was precisely similar to 

 that used in the case of the quartz. 



The results are given below. 



Sugar solution. 

 Table VII. 



Condition of experiment. 



Deflexion of 

 electroscope 

 receiving hori- 

 zontal tertiary 

 beam. 



Deflexion of 



electroscope 



receiving 



vertical tertiary 



beam. 



f (i) Carbon radiators 1 



Direct I R 1 +R 2 present. J 

 i 



^ \ (ii) Carbon radiator "1 



beam. ! R x present \ 



y R 2 absent J 



12-5 

 5-1 



5-3 

 32 



( (i) Carbon radiators 1 

 Secondary beam j R x -(- R 2 present . J 



transmitted -j (H) Carbon radiatop , 



through quartz. | R x present 1 



^ R 2 absent J 



97 

 49 



45 

 31 



Table VIII. 



Condition of experiment. 



Intensity of 



tertiary radiation 



reaching horizontal 



electroscope. 



Intensity of 

 tertiary radiation 

 reaching vertical 



electroscope. 



Secondary beam transmitted 

 through sugar solution ... 



7-4 



4-8 



21 

 14 



That is : — 



Polarization of direct secondary beam ... 



Polarization of secondary beam after"! 

 transmission through sugar solution . . J 



Zl 4 

 21 



±? 

 1-4 



35. 

 3'5. 



