1 02 Dr Seebcck on the polarizing angles 



Observed angle, 2 surface - 55 9 +0 2 



3. Common opal. 

 Calculated angle of polarization 

 Observed do. on 1 surface 

 2 do. 



4. Glass A. 

 Calculated angle of polarization 

 Observed do. 1 surface 

 2 do. 



5. Glass B. 

 Calculated angle of polarization 

 Observed do. 1 surface 

 2 do. 



6. Glass C. 

 Calculated angle of polarization, 

 Observed do. on 1 surface, 



2 do. 



3 do. 



7. Glass D. 

 Calculated angle of polarization, 

 Observed do. on 1 surface, 



2 do. 



8. Glass E. 

 Calculated angle of polarization, 

 Observed do. on 1 surface, 

 2 do. 



9. Glass F. 

 Calculated angle of polarization, 

 Observed do. on 1 surface, 



2 do. 



3 do. 



10. Pyrope. 

 Calculated angle of polarization, 

 Observed do. on 1 surface, 

 2 do. 



11. Yelloiv Blende. 

 Calculated angle of polarization, 

 Observed do. on natural surface, 

 artificial do. 



